IMRs press release states: IMR 4166 [has] a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington and dozens more.. It is available right now at Powder Valley in both one-pound ($25.45) and 8-pound ($182.75) containers: IMR4166-01: IMR 4166 1 LB. This is an all-new extruded powder with a burn rate similar to Hodgdon Varget. IMR 4166 + 55gr V-Max in 223 Rem tailbon3 Jan 19, 2017 Help Support Long Range Hunting Forum Become a supporting member tailbon3 Well-Known Member Joined Aug 24, 2009 Messages 84 Jan 19, 2017 #1 I'm looking for some load data for the 55gr V-Max in 223 Remington with IMR 4166. Sign up to get updates and access to exclusive promotions. I've had good luck with 8208 with 77gr SMK's and 69gr Nosler Competition Customs Hoon Rating - 100% 1 0 0 Joined Mar 2, 2013 Messages Generally no two rifles will like the same exact load. Share the post "Guide to IMRs Enduron Powders What You Need to Know", Powder Valley Inc. (PVI) now has the new IMR 4166 powder. They also produce specialty rounds designed for competition shooting events like . Find load data for IMR 7828 SSC propellant by clicking the button "Loads for this Powder".More about this powder:IMR 7828 SSC is a magnum rifle powder with exactly the same burn rate as standard IMR 7828 and uses the same data. Grab some at your nearest dealer, or for more information, contact IMR Powder Company; Tel. However, to up the ante the Enduron line also utilizes copper fouling reducing technology to help keep your bore free of the hard to remove copper. IMR powder has long been a choice powder for knowledgeable reloaders. .45 ACP and .38 Super, while their rifle offerings range from .223 Remington to .30-06 Springfield. Be the first to share your insights. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. Mag. When I approached Chris Hodgdon with the question Does it stop copper from fouling or remove it with each shot? with a smirk he responded Its a proprietary formula. The maxorder quantity of any powder SKU is. Once they had a couple dozen rounds loaded with each powder, they went and shot them with each powder at 25 F, 65 F, and 140 F. The muzzle velocity of each shot was recorded using both a LabRadar Doppler Radar and a MagnetoSpeed Chronograph. Taking the rifle back to the workbench for a cleanup proved the claimit had virtually no copper fouling, as proven by the absence of a blue hue in the exiting patch soaked in Sweets 7.62 bore solvent. For a better experience, please enable JavaScript in your browser before proceeding. For a better experience, please enable JavaScript in your browser before proceeding. Please help us to improve and report any suggestions via our contact form. 3, tried this powder and same bullet in the grandson's Ruger77 .223. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. CL 2.005 3, e-mail Hornady and the powder mfg. The IMR 4166 Powder may be on the slow side but will be interesting with heavier bullets. Its a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. First run tomorrow. In 2003, Hodgdon Powder Company acquired the IMR brand bringing these prestigious powders under the umbrella that also includes Hodgdon, Winchester and GOEX. IMR 4166 performs well in the .308 Win (for bullets up to 175 grains) and in 6mm cartridges running the heavier (95-107gr) projectiles. Comprehensive load data for IMR 4166 Enduron reloading powder und technical specifications for this propellant. IMR 4451 Another new Enduron powder that gives top performance in the venerable .30-06, 270 Winchester, and 300 Winchester Short Magnum, to name just a few. IMR 7977 is the slowest burn rate Enduron Technology powder. Villain Weapon Systems ATPIAL-C EFL -- Enhanced Class 3R Performance Available Now from TNVC! They are suitable for a wide variety of cartridges, from small varmint cartridges all the way up to the .338 Lapua Magnum. VAT (where applicable), shipping costs and possible delivery charges. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. Very consistent velocity, quality powder, not so good on powder throw due to it being a stick powder. It is a true magnum cartridge propellant with outstanding performance in such cartridges as the .300 Winchester Magnum, 7mm Remington Magnum, .338 Lapua and more. This powder is comparable to Hodgdon H4350. .223 Remington (Hodgdon Data Using IMR Powder) reloading data with 221 loads. IMR4166-08: IMR 4166 8 LBS. I'm very happy with this powder. Past breakthroughs have brought us the extreme extruded line that gives consistent performance regardless of ambient temperature, and more recently they have brought us CFE technology that deters and reduces copper fouling. Naturally the next step was to combine the two for a new line of powders. I hope to get to .5 moa consistently anything better will be nice. Love the copper fouling eliminator makes cleaning a breeze, Posted by Paul rosenkranz on Nov 9th 2021. Powders include IMR IMR 4166 possesses the fastest burn rate in the Enduron lineup. Posted: 7/2/2021 8:19:25 PM EST. 110 PCS pistol, 2022 Editors Choice Award Winning Ruger 5.7 LC Carbine, 2022 Editors Choice Award Winning Mossberg 940 Pro Tactical 12-gauge, Fiocchi Introduces New 5.7x28mm Subsonic Ammo, Lehigh Defense 115-gr. IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. Each of these are still favorites with handloaders today! Hodgdon's excellent online reloading data show only IMR 4007SSC, IMR 4166, IMR 8208XBR, and Hodgdon CFE 223 breaking 3,750 fps with a 55-grain bullet in a 24-inch test barrel. ALL THE LOAD DATA YOU'LL EVER NEED ALL IN ONE PLACE! var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. . So they would likely show much larger swings than what these four top-performing powders showed. Full Member. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. Find load data for IMR 4451 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4451 is a versatile, match-grade propellant with a mid-range burn speed in the Enduron line. Most powders arent specially formulated to be temperature stable. SUBSCRIBE TO OUR NEWSLETTER TO STAY UP ON THE LATEST. (see note 1 ). Today, only the newest reloading fuels can exceed that with a 55-grain bullet in the commercial .22-250. Find load data for IMR 4895 propellant by clicking the button "Loads for this Powder".More about this powder:Originally a military powder featured in the 30-06, IMR 4895 is extremely versatile as a medium burn speed propellant. I haven't seen any Hornady loads in the manual using 4166. I'm looking for some load data for the 55gr V-Max in 223 Remington with IMR 4166. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. Improved Military Rifle IMR 3031 Improved Military Rifle IMR 4064: 5.56 x 45 mm: Accurate 2495 VihtaVuori N135 VihtaVuori N140: Hodgdon CFE 223 Hodgdon H 335 Improved Military Rifle IMR 8208 XBR VihtaVuori N530 VihtaVuori N540: 5.6 x 50 Magnum: Improved Military Rifle IMR 4064 Winchester 748: 5.6 x 57: Improved Military Rifle IMR 4320: 5.7 x 28 . It is available right now at Midsouth Shooters and Powder Valley in both one-pound and 8-pound containers: For more information and LOAD DATA visit IMRpowder.com and navigate to the Hodgdon Reloading Center. By that, they mean the change per degree from 20 to 65 might be smaller or larger than the change per degree from 65 to 140. Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. The IMR Enduron line is similar to Hodgdon's Extreme Extruded line, in that it is temperature insensitive. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Subscribe to the free newsletter and do not miss any news or promotions. It may not display this or other websites correctly. msinc No reviews found. Precision shooters will find an Enduron option well-suited to most of the popular precision cartridge types. The Enduron Technology powders are available in one-pound (1 lb) and eight-pound (8-lb) containers from quality reloading retailers. The 4166 seemed interestingit matched my motorcycle jacket, but none of my reloading manuals had any data for it (it's that new). So, I'd use it for loads listed by Hodgdon. Importantly, it seems to be a good substitute for unobtanium Varget powder. for 223. The first IMR reloading powders included ever popular favorites IMR3031 (1934), IMR4064 (1935) and IMR4350 (1940). Share the post "Cant Find Varget for Sale? The IMR 4166 shows loads for a 69 hpbt. The folks at PrecisionRifleBlog.com meticulously loaded 6.547 Lapua ammo with each powder using some of the best equipment available. Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. The LabRadar is a new type of device that allows you to measure muzzle velocity within at least +/- 0.1% of the reading. So if your goal is first-shot hits and you may shoot in a variety of conditions you should care about temperature stable powders. The kid's rifle didn't like this powder, but perhaps yours may. This is a true magnum propellant yielding outstanding performance in 6.5-300 Weatherby, 264 Win Mag, 28 Nosler and 300 Rem Ultra Mag, among other cartridges. IMRs press release states: IMR 4166 [has] a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more.. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Menu & Links Or maybe have QuickLoad data? . DuPont had historically been a major supplier of military propellants long before becoming one of the handloaders favorite powders. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. $49.99 - $357.99 4.48 17 reviews IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. I went to the IMR site and it takes you to hodgdon's loading site. Some of our Forum members have reported excellent results with IMR 4166 in cartridges that work with Varget, such as the 6mmBR, 6 Dasher, 6.547 Lapua, and .308 Win. Choose a IMR powder and find the respective load data for it. First ladder turned out great! UPS has officially stopped shipping guns? Address: xxl-reloading.com, Gartenweg 9, 83661 Lenggries, Germany. OAL 2770 Sierra Case The maxorder quantity of any powder SKU is, https://shop.hodgdon.com/sites/www/files/2022-04/2022-IMR%20Endurons%20SDS.pdf, https://shop.hodgdon.com/sites/www/files/2020-08/sell-sheet-imr-enduron-final.p. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Anyone seen/tried this combo? IMR recently released a new line of powders with Enduron Technology which is also marketed to have extreme temperature stability. Will purchase more. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. - 24hourcampfire Previous Thread Next Thread Print Thread Hop To BP-B2 IC-A B3 IC-B B4 RR1-22 Who's Online Now 828 members ( 10Glocks, 12344mag, 007FJ, 1911a1, 1100mag, 95 invisible), 2,340 guests, and 1,313 robots. Clearly, the competitor's 'choice' and the Varmint Hunter's 'dream powder.'. Reduced Rifle Loads. this stuff is not affected temp at all. It may not display this or other websites correctly. IMR is an acronym for Improved Military Rifle. In another study, IMR 4166 was identified as the best replacement for Varget between 61F and 103F for .308 F-TR rifles. The Rifle: Savage 10fcp, 24" 5r, accustock .308 Win, Vortex Viper PST 4-16 Target distance: 100 yards Shot off front and rear sand bags from a bench When we are sold out, we are sold out. Ive heard some say 4166 is similar to 4064, which I haven't used or have on hand currently. For more information and IMR 4166 LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. This propellant performs comparably to Hodgdon H4350 but charge weights are materially different. Versatility with uniformity and accuracy. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. You are using an out of date browser. Finally, Enduron powders are environmentally-friendly, crafted from raw materials that are not harmful to the environment. For those who ask.I am obviously loading for a 556 NOT a 223. otherwise why mention I would be using only cases marked as 556! This Enduron series powder is temp-stable and accurate. I shot a 4.125", 10-shot group at 600 yds - well under 1 MOA and slightly better than my Varget loads, although they were close enough that I attribute the difference to the shooter. For example, IMR 4166 is a good replacement for Hodgdon Varget (commonly used in the .223 Rem, 6mmBR and .308 Win), while IMR 4955 is a fine substitute for H4831 (favored by F-Open shooters for the .284 Win and 7mm WSM cartridges). _gaq.push(['_trackPageview']); Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR End. Is there a different load data site? At 600 yds, the POI with 4166 loads was about 1.2 MOA higher than when using 43.2 gr. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; Bullets ranged from 50- 77 grain , same bullets shot very well with Varget anf H4895 . . The illuminated reticle made it very easy to see on the black target, and honestly was the first time I have ever had used the feature (now it may be hard to go back). 5 rounds shot You can find that here: http://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/, Share the post "Powder Temp Stability IMR Enduron vs. H4350 and Varget". This propellant performs comparably to Hodgdon Varget but charge weights are materially different. Whether youre reloading for the first time or an experienced reloader who desires elite powder, IMR is a company that should be on your radar. Hodgdon Powder Co., distributors of Hodgdon, IMR, and Winchester powders, says that: The new IMR Enduron Technology powders will be available at dealers in early 2015 in 1-pound and 8-pound containers. For more information and Enduron LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. One member wrote: in my 6.547 IMR 4166 gives speeds and accuracy pretty much exactly the same as Varget. And other shooters have observed reduced copper fouling with Enduron series powders, so IMRs Enduron anti-fouling chemistry does seem to work. They both love it. The same increase in temperature also causes the nitrocellulose-based powder inside the cartridge to burn at a higher rate, producing approximately four times the Point of Impact (POI) shift than just air temperature alone. ga.src = ('https:' == document.location.protocol ? The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. . PRBs testers explain the full set of equipment and steps in their loading process in the Full Test Report. Tried their 7977 in a magnum rifle and it had same accuracy as H1000. Assuming all other environmental conditions remain the same, an increase in air temperature will cause a flatter trajectory due to a lower air density (easier for the bullet to cut through the air). Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Case: Winchester; Twist: 1:12 inches; Primer: Federal 210M, Large Rifle Match; Barrel Length: 24 inches; Trim Length: 2.005 inches. Precision shooters will find an Enduron option well-suited to most popular precision cartridge types. A Meopta MeoStar 1.710x riflescope was mounted to ensure an optimum sight picture. This included the top-of-the-line Prometheus Gen II Powder Scale, which is capable of loading to the nearest kernel of powder. With Varget so hard to find, if IMR 4166 proves accurate (and available) we might see many .308 Win shooters make the switch. (The only two .45-70's I own are trapdoor Springfields.) Moving on, the individual loads were fired and the barrel was allowed to cool between each group. My factory sierra high 2576 . IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. The Enduron Technology powders are available in one-pound (1 lb) and eight-pound (8-lb) containers from quality reloading retailers. .308 Winchester (IMR-4166 Data) Warning! The IMR brand was created under the DuPont Corporation. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. FPS low 2735 high 2789 IMR 4166 is one of IMRs Enduron family of propellants. The main features of the Enduron series are copper . You can see Hodgdon H4350 had the least variance in muzzle velocity, with just 25 fps over the 115 swing in temperature! IMR 4166 Enduron (function() { The IMR brand was first introduced under DuPont in the 1930s. 5 rounds shot Find load data for IMR 8208 XBR propellant by clicking the button "Loads for this Powder".More about this powder:IMR 8208 XBR is an accurate-metering, super short-grained extruded rifle powder was designed expressly for match, varmint, and AR sniper cartridges. New customer? Shooters has been keeping it around $20/lb if you buy in quantity. Weve been quite pleased with IMR 8208 XBR as a Varget alternative. Loading density is perfect for the very large magnums, including the 6.5mm and 7mm magnums. That means swings in ambient outside temperature can affect your internal ballistics, which will directly affect your muzzle velocity, which will change your bullets trajectory. Once they had a couple dozen rounds loaded with each powder, they went and shot them with each powder at 25 F, 65 F, and 140 F. The muzzle velocity of each shot was recorded using BOTH a LabRadar Doppler Radar and a MagnetoSpeed Chronograph. Shooters will find IMR 8208 XBR yields max velocities and 'tack driving' accuracy. This ensured the powder charges were identical for each round of ammo. IMR now offers four Enduron powders that cover a broad range of burn rates. IMR 4166 powder? These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. Find load data for IMR 4227 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4227 is a medium burn speed, magnum pistol propellant. We continue to prioritize our shipments to our traditional sales channels to maximize powder availability at retailers. })(); To comment on a post, click Post Title or "Comment" Link. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. Youll also find official load data in the Hodgdon 2020 Annual Manual. Was able to find a node fairly quickly and with a little seating adjustment, it's shooting .3 moa or better. Trail Boss Reduced Rifle Load. Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder". IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Between 1/3 and 1/2 MOA for 5 shot groups at 200yd. Such loads are marked with an asterisk in the data to show where standard 7828 will not fit. It is expected to perform well in the .308 Winchester and in 6mm cartridges running the heavier (95-107gr) projectiles. Plain cartridges, in contrast, turned in an average extreme spread of 51 fps. Find load data for IMR 4064 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. Newtosavage Dec 9, 2020 #9 ericwh Well Known Rokslider Joined Mar 9, 2017 Messages 479 Location PA Powder Temp Stability: Hodgdon Extreme vs. IMR Enduron The components in question make up my service rifle load in .223 and they are Hornadys 55 grain V-max bullet seated into a Lake City brass case at an OAL of 2.270 and ignited with a Wolf Small Rifle Primer. IMR offers a modern line of powders with Enduron Technology which is also marketed to have extreme temperature stability. worst groups at .5 moa most groups around the .3 moa mark. Reviews can only be submitted while being logged in. Not a brand to rest on its laurels, IMR continues to develop new powder formulas that are increasingly insensitive to weather and temperature changes, have improved burn speeds, and contain additives that remove copper bullet jacket fouling. That is very, very low. Sep 25, 2010 . The weight of a kernel of 4166 was almost double the weight of a kernel of H4895, and they were clearly larger. Picked up a lb of this stuff to do a little testing with, see if it compares to Varget for accuracy in .223. I tried 4166 and my groups opened up. For example, IMR 4166 is a good replacement for Hodgdon Varget (commonly used in the .223 Rem, 6mmBR and .308 Win), while IMR 4955 is a fine substitute for H4831 (favored by F-Open shooters for the .284 Win and 7mm WSM cartridges). It provides top performance in big game cartridges such as 25-06, 280 Remington and 300 Winchester Magnum. Anyway, I like the 4166! Love the copper fouling eliminator makes cleaning a breeze. temperature stable too. Find load data for IMR 4350 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4350 is a medium- to slow-burn rate propellant and is the number one choice for the new short magnums, both Remington and Winchester versions. It was less accurate than 4 other powders. IMR now offers five (5) Enduron powders: IMR 4166, IMR 4451, IMR 4955, IMR 7977, and IMR 8133. I hope to get some time on the new bull barrel AR. Its loading density is perfect for magnum cartridges and contributes to superb uniformity, yielding outstanding performance in 300 Winchester Magnum, 7MM Remington Magnum and .338 Lapua Magnum. In rifles, this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet and 221 Fireball. Hodgdon Varget was the second least temperature sensitive powder in this test, with 46 fps of variance in muzzle velocity between temperatures of 25 F and 140 F. IMR 4166 performed very similar to Varget, and proved to be fairly insensitive to large swings in temperature. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. Reloading 223 Rem./5.56mm is mostly the usual routine. I have a pound of 8208 XBR for 223 development, haven't gotten round tuit yet. Load data should be forthcoming pretty soon. Very happy with the results. The top shooters in the PRS and veteran long-range shooters in other disciplines have learned to value a temperature-stable powder. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Across the board, the Enduron line is very insensitive to temperature changes, which is important for both match shooters and hunters. This powder is comparable to Hodgdon H4350. I much prefer IMR 8208 XBR for the 223. flyfisher117 Professional Milk Jug Hunter. The manual allows for stiffer charges, but at 25.1 the load begins to compress. They list loads for Sperry SP and Barnes TTSX in 55gr weights. IMR is bringing out a new series of advanced-formulation extruded powders. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. This website uses cookies to ensure the best experience possible. Anyone seen/tried this combo? In addition, it is a longtime favorite of Match shooters. The results were very interesting, to say the least. when enduron works it is often same hole shooting. The manual allows for stiffer charges, but at 25.1 the load begins to compress. Has anyone left switched from 4064 to 4166 without losing accuracy? It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Temperature change stability the Enduron line is insensitive to temperature changes. However, due to the super short kernels, metering is virtually as good as a spherical powder. VAT (where applicable), shipping costs and possible delivery charges. I didn't want to like this stuffI figured I was likely buying marketing hype for $31/lb at my LGS. * All prices incl. 4451 is the medium burning powder, for medium cartridges like the .30-06 Springfield and the .270 Winchester. This allows up to 4% more powder space in the case and in many loads yields more velocity than standard 7828. This website uses cookies to ensure the best experience possible. Learn more about Enduron powders at www.enduronimr.com. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. spitzer boat tail & imr 4166, .223 rem. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. I was planning to switch to 4166 for my .308, but it seems that it has also become nearly impossible to source. Good luck. When will Enduron powders appear on dealers shelves? Testing consisted of a single 5-shot group of each incrementmental charge weight just to get a rough feel for the potential of this powder. It is formulated to reduce fouling and to be stable across a wide temperature range. Environmentally friendly - Enduron technology is environmentally friendly, crafted using raw materials that are not harmful to the environment. Thanks, Was looking for an equivalent powder from H4895 when I ran into the 4166. Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Then Try IMR 4166 Powder, Powder Temp Stability IMR Enduron vs. H4350 and Varget, http://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/, Powder Temp Stability: IMR Enduron vs. Hodgdon Extreme, Guide to IMRs Enduron Powders What You Need to Know, Powder Valley has new IMR 4166 Powder in Stock, IMR Introduces New Enduron Powders: 4166, 4451, 7977. However, Alliants relatively new Reloder 16 is an extremely temp-stable powder, with a burn rate that is a close match to H4350. Hodgdon Extreme Series powders have attracted quite a fan base, with over 90% of the top shooters in the Precision Rifle Series choosing to run one of those powders. Average extreme velocity spread was only 19 fps for 15 Sierra 142-grain MatchKing bullets fired from prepared cases filled with precisely weighed IMR-4166 charges. Second, Enduron powders are all very temp-stable. Trim to length as needed, clean/uniform the primer pockets, reprime, charge with powder, verify powder charges, seat bullets to specific overall length, perform final inspection, box, and label.
imr 4166 load data 223