3, e-mail Hornady and the powder mfg. IMR 4166 possesses the fastest burn rate in the Enduron lineup. For example, variation in velocity does NOT appear to be linear across the full range of temperatures. Thanks, T.B. ARCHIVED. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Load data for the new IMR 4166 was taken from Hodgdon's 2015 Annual reloading manual, and in increments of .3 grains or less, loads were worked up from 24.0 through 25.1 grains of IMR 4166. Load data for 50 loads in caliber 7 x 57 with .284 | 139gr . Share the post "IMR Introduces New Enduron Powders: 4166, 4451, 7977". To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. When I hit that node It's going to be great. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. 44gr 4166 It is expected to perform well in the .308 Winchester and in 6mm cartridges running the heavier (95-107gr) projectiles. 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. Most powders arent specially formulated to be temperature stable. I do not see it listed for 40 grain bullets. .1 to .2 gr accuracy. - 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. Thanks, Posted by Phillip Jackson on Aug 1st 2021. Comprehensive load data for IMR 4166 Enduron reloading powder und technical specifications for this propellant. Sierra load data for over 95 Berger bullets in over 65 calibers with all suitable powders on the market. It also offers good load density and meters reasonably well. This Enduron series powder is temp-stable and accurate. As with all load development, reference a credible reloading manual, then start at the minimum and work up in small increments. For more information and IMR 4166 LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. The accuracy results were almost identical to those of Varget, with my best group coming in at 1.05 MOA from a 24.6-grain charge of 4166not bad for an initial round of load development. This website uses cookies to ensure the best experience possible. If you are the site owner (or you manage this site), please whitelist your IP or if you think this block is an error please open a support ticket and make sure to include the block details (displayed in the box below), so we can assist you in troubleshooting the issue. The IMR Enduron line is similar to Hodgdon's Extreme Extruded line, in that it is temperature insensitive. IMR now offers four Enduron powders that cover a broad range of burn rates. As a medium burn speed propellant, XBR is ideally suited for cartridges like the 223 Remington/5.56mm, 308 Winchester/7.62mm NATO and the 6mm PPC. Key: Admin , Global Mod , Mod RR2/3-22 UDG-IP Reviews can only be submitted while being logged in. IMR 4166 is one of the new Enduron family of propellants. I have heard the same criticism from other forum members. You are using an out of date browser. forum.accurateshooter.com/threads/imr4166-loads-for-223.4053707/, Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. 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. Share the post "Cant Find Varget for Sale? First, these powders all feature chemistry that reduces copper fouling. In modern type guns, 4166 IMR Enduron Powder is a viable powder. Sounds familiar! The IMR 4166 Powder may be on the slow side but will be interesting with heavier bullets. I use this powder in my 6mm dasher bench gun. I understand this is an old thread, but want to reply anyway, 243 75gr V-Max loads using StaBall or IMR 4166. So, I'd use it for loads listed by Hodgdon. At 600 yds, the POI with 4166 loads was about 1.2 MOA higher than when using 43.2 gr. We place limited powder inventory for sale on a regular basis on our website. Share the post "Powder Valley has new IMR 4166 Powder in Stock". The main features of the Enduron series are copper . The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. spitzer boat tail & imr 4166, .223 rem. IMR 8133 performs comparably to Hodgdon Retumbo but charge weights are materially different. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. This powder is comparable to Hodgdon H4831. Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder". IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. The manual allows for stiffer charges, but at 25.1 the load begins to compress. Was able to find a node fairly quickly and with a little seating adjustment, it's shooting .3 moa or better. I use in 243 Win and 6.5 CM. I went to the IMR site and it takes you to hodgdon's loading site. 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. (function() { Please help us to improve and report any suggestions via our contact form. IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. Shooters has been keeping it around $20/lb if you buy in quantity. Reduced Rifle Loads. This ensured the powder charges were identical for each round of ammo. 4451 is the medium burning powder, for medium cartridges like the .30-06 Springfield and the .270 Winchester. Across the board, the Enduron line is very insensitive to temperature changes, which is important for both match shooters and hunters. It provides top velocities and performance with heavier bullets in medium-sized magnums. Load . We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. then consider IMR 4166. Choosing 4166, I decided to use it in place of my usual choice of Varget in a known accurate cartridge and rifle combination. Great stuff! The maxorder quantity of any powder SKU is. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; IMR 4166 in .223. _gaq.push(['_setDomainName', '.accurateshooter.com']); IMR now offers five (5) Enduron powders: IMR 4166, IMR 4451, IMR 4955, IMR 7977, and IMR 8133. Shooters will find IMR 8208 XBR yields max velocities and 'tack driving' 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. That provided two sets of velocity numbers. So if your goal is first-shot hits and you may shoot in a variety of conditions you should care about temperature stable powders. View Product Warning DEALER LOCATOR Find load data for IMR 4955 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4955 is a versatile, match-grade propellant with a mid-range burn speed that is in between IMR4451 and IMR7977. Please enter your login details below. I bought all three. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. h4895 Reduced Rifle Load. Thats because a change in temperature can affect the trajectory or flight path of the bullet in two well-known ways: 1. .45 ACP and .38 Super, while their rifle offerings range from .223 Remington to .30-06 Springfield. Bullets ranged from 50- 77 grain , same bullets shot very well with Varget anf H4895 . Share your experiences with other customers. Finally, Enduron powders are environmentally-friendly, crafted from raw materials that are not harmful to the environment. Picked up a lb of this stuff to do a little testing with, see if it compares to Varget for accuracy in .223. In this post, I've got some great highlights including the LEE . Most powders arent specially formulated to be temperature stable. When we are sold out, we are sold out. Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. $40.99 - $270.99. Or maybe have QuickLoad data? The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. It is primarily a pistol powder but has some application in rifles. 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 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.. I'm very happy with this powder. when enduron works it is often same hole shooting. It may be that if I did more load development I could close the gap. Between 1/3 and 1/2 MOA for 5 shot groups at 200yd. 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". .223 Remington (Hodgdon Data Using IMR Powder) reloading data with 221 loads. WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For this reason, the IMR brand powders truly are Legendary products. IMR is bringing out a new series of advanced-formulation extruded powders. (function() { Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR End. IMR 4166: This newer propellant produced by General Dynamics in Canada had the best temperature insensitivity and may be the best substitute for Varget across a wide temperature range with 77 to 80 grain bullets. I have enough on hand to last for a while, but when I found some IMR 4166 available, I decided to try it for my MPA .308. IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. FPS low 2735 high 2789 I didn't want to like this stuffI figured I was likely buying marketing hype for $31/lb at my LGS. 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. Load data for the new IMR 4166 was taken from Hodgdons 2015 Annual reloading manual, and in increments of .3 grains or less, loads were worked up from 24.0 through 25.1 grains of IMR 4166. The 223 is the most common round. The IMR 4166 shows loads for a 69 hpbt. The top shooters in the PRS and veteran long-range shooters in other disciplines have learned to value a temperature-stable powder. Fired from My Rock River Arms National Match upper, these rounds consistently fetch accuracy in the .75 to 1.25 MOA area. Clearly, the competitor's 'choice' and the Varmint Hunter's 'dream powder.'. 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. 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. Optimal load density - Enduron powders provide optimal load density, assisting in maintaining low standard deviations in velocity and pressure, a key feature for top accuracy. Plain cartridges, in contrast, turned in an average extreme spread of 51 fps. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. IMR 7977 is a slower burn rate in the Enduron family. I'm looking for some load data for the 55gr V-Max in 223 Remington with IMR 4166. $182.75. 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. Some powders are more affected by changes in temperature than others. 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 I'm using this in my Tikka CTR 223 under 73 gr Berger BT target bullets. Load data should be forthcoming pretty soon. 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. JavaScript is disabled. Subscribe to the free newsletter and do not miss any news or promotions. 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. Trail Boss Reduced Rifle Load. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Sign up to get updates and access to exclusive promotions. ), AR Issue 2022 Gun & Gear Giveaway Contest, Editors Choice Gun & Gear Giveaway Contest, Fall Hunting 2021 Gear & Giveaway Contest, Defensive Handgun Gun & Gear Giveaway Contest, Defensive Handgun Issue Gun & Gear Giveaway, The Hunter to the Hunted: Savage Arms Introduces New 110 Carbon, Wilson Combat 300 HAMR Barrel Conversion, 2022 Editors Choice Award Winning SIG Sauer P322 .22LR, 2022 Editors Choice Award Winning Savage Mo. It was less accurate than 4 other powders. Find load data for IMR 7977 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 7977 is a slower burn rate in the Enduron family. 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. Grab some at your nearest dealer, or for more information, contact IMR Powder Company; Tel. When placed and configured optimally, the LabRadar can measure muzzle velocity with +/- 0.1% accuracy, according to the manufacturer. For more information, go towww.P65Warnings.ca.gov. 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. works great in many cartridges with good to great accuracy. 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. Its a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. Find load data for IMR TrailBoss propellant by clicking the button "Loads for this Powder".More about this powder:Find load data for Accurate 5770 propellant by clicking the button "Loads for this Powder".More about this powder:Trail Boss was designed specifically for low-velocity lead bullets suitable for Cowboy Action shooting. 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. (5.56 x 45 NATO) .223 WSSM .224 Valkyrie .224 Weath. IMR 4451 had the largest swing in muzzle velocity of the powders tested, but keep in mind just 68 fps over 115 F swing is still a good performance. $25.45 IMR 4166 Enduron 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. The folks at PrecisionRifleBlog.com meticulously loaded 6.547 Lapua ammo with each powder using some of the best equipment available. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. This propellant performs comparably to Hodgdon H4831 but charge weights are materially different. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. So far IMR4166 has worked great for me in the .243 Winchester with light bullets, the .257 Roberts with 75-100 grains bullets, .308 Winchester with 150's and 168's, the .303 British, 8x57 and .45-70 with "low pressure" loads. . IMR offers a modern line of powders with Enduron Technology which is also marketed to have extreme temperature stability. PRBs testers explain the full set of equipment and steps in their loading process in the Full Test Report. Please help us to improve and report any suggestions via our contact form. Good luck. This is a true magnum propellant yielding outstanding performance in 300 Winchester Magnum, 7mm Remington Magnum and 338 Lapua, among other cartridges. I have had good luck with 4166 in .223 bolt rifles. IMR powder has long been a choice powder for knowledgeable reloaders. Being one of the easiest people in the industry to talk to, a secret this guarded certainly sparked my curiosity, so I made sure to order a test sample. CL 2.005 Share the post "Guide to IMR Enduron Powders: 4166, 4451, 4955, 7977, 8933". Case: Winchester; Twist: 1:12 inches; Primer: Federal 210M, Large Rifle Match; Barrel Length: 24 inches; Trim Length: 2.005 inches. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. IMR 4166 Enduron 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. The Hodgdon powder company is world renowned for introducing revolutionary technology to the reloader. _gaq.push(['_setAccount', 'UA-6323545-2']); Generally no two rifles will like the same exact load. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. Varmint shooters with small-bore cartridges love it. Be Alert: Publisher cannot be responsible for errors in published load data. Reloading for 223/556 Service Rifle Competition (NRA/CMP bullseye . The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Posted by Christopher Brown on Apr 19th 2022. This helps attain low ES/SD in velocity and pressure, which translates to improved long-range accuracy and tight verticals. Here on Ultimate Reloader you can count on a LOT of AR-15 content coming over the next year: everything from reloading .223/5.56, to hunting, a lot more with suppressors, and some custom AR-15 rifle action! 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.