While the value is lower for IMR 4166, it is unlikely to be statistically different based on the high standard deviations. I wanted to do a better job of describing IMR 4166 but, between shooting and getting the kids off to a school function Friday evening, I didn't do a very good job. Post Nov 17, 2016 #1 2016-11-17T18:04. 78. tadeloach22. Let me know where you think the nodes are and any other suggestions would be appreciated. Accurate and IMR 4064 are different powders that both have 4064 in the name, that's how they are different. It's really a less temperature sensitive version of IMR 4064, with an anti-copper fouling additive. 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. Yeti bottle. 3. A couple seasons back, PrecisionRifleBlog.com (PRB) published a significant field test of powder temperature stability. ", This website uses cookies for functionality, analytics and advertising purposes as described in our, IMR 4166 vs. Varget side by side comparison. Unfortunately, this popularity and high demand coupled with limited importation of powder produced in Australia and marketed as Varget in the United States has resulted in recurring shortages to U.S. shooters. (HAZMAT Fee Required) Price $29.99. Vihtavuori N140 appear to offer better performance (temperature insensitivity) than do the other two powders. IMR 4046 had the best performance (temperature insensitivity) in this range. I did a little test today. IMR 4064 is a little faster burning than 4350 therefore theoretically it would be a slightly better for the lighter weight bullets, say the 150's and 4350 for the 185's. Velocity 2699 fps. ALL Accurate 2700 Accurate 4064 Accurate 4350 Alliant Powder Reloder 16 Hodgdon BL-C(2) Hodgdon CFE 223 Hodgdon H380 Hodgdon H414 Hodgdon H4350 Hodgdon H4831 Hodgdon H4895 Hodgdon Hybrid 100V Hodgdon Suprform Hodgdon Varget Improved Military Rifle IMR 4064 Improved Military Rifle IMR 4166 Improved Military Rifle IMR 4350 Improved Military Rifle IMR 4451 Improved Military Rifle IMR … Five shots into .409″ (.391 MOA) with a velocity of 2,756 feet/second and a SD of 8.1 feet/second. IMR 4064 Is what my. Click on the graph for a larger image. Data from the first test would be used to conduct a more detailed second test with promising powders. > IMR 4064 had very similar temperature insensitivity to that of Varget between 34°F and 68°F and was able to produce high velocity for 1000-yard shots with 200-plus grain bullets. The purpose of the studies was to identify a powder or powders that may have temperature insensitivity comparable to that of Varget. Seems as though 4166 is very similar to varget and 4064 in burn rate but 4166 is a double base powder while the other two are not. Powder loads for IMR 4166 and IMR 4064 were 43.2gr. There were variable changes in velocity per degree change in temperature in different areas of the temperature curve. IMR 4198 - 8 lb Item POWR41988. IMR 4046 appeared to be as temperature insensitive or more temperature insensitive than Varget in the range from 34 to 77°F, Vihtavuori N140 appeared to have excellent insensitivity to temperature-induced velocity changes over a wide temperature range. That would also place it between IMR-4895 (#89) and RL-15 (#97). ... Had to wait unitl I could get my own. IMR 4064 vs Accurate 4064; If this is your first visit, be sure to check out the FAQ by clicking the link above. IMR 4227 - 8 lb Item POWR42278. IMR Powder, including IMR 4451 Enduron Rifle Powder, IMR Powder 4350 Rifle Powder 1 lbs, IMR Powder White Hots Pellets, IMR Powder 4064 Rifle Powder 1 lbs, IMR Powder 4350 Rifle Powder 8 lbs Call Us Today! Go to Hodgdon site, select your caliber, bullet weight, IMR and 4064. Re: .308--IMR 4895 vs. IMR 4064? IMR 4350 - 1 lb posted 25 March, 2020, last updated 3 April 2020 42.4 with Varget, and probably 43.0 with 4166 I would think... thanks for sharing. The test was designed to quantify the temperature stability of Hodgdon H4350 and Varget powders compared to IMR’s Enduron line of powders, specifically IMR 4166 and 4451. However, N140 was estimated to be of limited value in F-TR rifles shooting 200-plus grain bullets given the limited case volume and velocity needed to be competitive at 1000-yard shooting distances. 1. The N140 load was set at a lower velocity performance level because I was uncertain of its temperature sensitivity at higher temperatures, and I didn't want to reach over pressure levels. IMR 4166 (lot 1040419 6417) - 41.7 grains I started reading about the new 4166 and found that it is everywhere here and plenty of it, so I … You may have to register before you can post: click the register link above to proceed. IMR 4166 appeared to be as temperature insensitive or more insensitive than Varget in the temperature range between 77 and 99°F. Those articles were reprinted and incorporated in the NRA Semi-Auto rifle guide, which I think is still available from them. 4166 much easier doing barrel clealing and in my area a lot easier to find. IMR 4064 Smokeless Powder- 8 Lbs. However, standard deviations remained high. Depending on the temperature range in which you are shooting, either IMR 4064 (lower ambient temperatures) or IMR 4166 (higher ambient temperatures) were considered to be good replacements for Varget in .308 Win F-TR shooting if needed. Mean symbols and standard deviation error bars are shown. (HAZMAT Fee Required) Price $34.99. "The accumulation of all powers, legislative, executive, and judiciary, in the same hands, whether of one, a few, or many, and whether hereditary, self-appointed, or elective, may justly be pronounced the very definition of tyranny. Increase in Velocity per Degree Increase in Temperature Between 1 and 37°C (34-99°F): Increase in Velocity per Degree Increase in Temperature Between 11 and 37°C (52-99°F): Increase in Velocity per Degree Increase in Temperature Between 1 and 25°C (34-77°F): Increase in Velocity per Degree Increase in Temperature Between 25 and 37°C (77-99°F): Summary of Findings from Preliminary Test 1 with Four Rifle Powders: IMR 4064, IMR 4166 and Vihtovuori N140 were tested between 34°F and 102°F. Velocity 2513 fps. Re: Max load for .308 Win with IMR 4064 and 168\'s? 2. IMR 4166 Smokeless Powder- 8 Lbs. Nov 29, 2019 #3 Chukar007 New member. IMR 4350 - 1 lb Item POWR43501. Powders and Loads Tested in Lapua case with 200 grain bullet : © 2020, William L. Castleman. 44 Hodgdon CFE Pistol 94 IMR Co IMR 4166 144 Accurate Arms 8700 ... 47 VihtaVuori N350 97 Accurate Arms 4064 147 Hodgdon US869 48 VihtaVuori 3N318 98 Accurate Arms 2520 148 VihtaVuori 20N29 49 IMR Co IMR BLUE 99 Alliant Reloder 15 50 Winchester 572 100 VihtaVuori N140 RELATIVE BURN RATES FROM FASTEST TO SLOWEST. Results of the test are shown HERE. general discussion of Optimal Charge Weight handloading and related topics. Go to Hodgdon site, select your caliber, bullet weight, IMR and 4064. Vihtavuori N140 (lot 01.12.2017) - 41.7 grains, Rifle/Brass/Bullet for Test 1: .308 Winchester bolt action rifle with 30 inch Bartlein 5R 1:10 barrel; Lapua Palma brass (4X reloaded following neck resizing at 0.002 tension); CCI BR4 primer; Berger 200.20X Hybrid bullets loaded at 3.02 inches COAL (0.02" off lands). The 44.5 gr. All powder loads filled the available cartridge space with an estimated 4.2 to 5.7% compression of powder. Vihtavuori N140 did not continue because calculations based on available data and QuickLoad (2015 database) indicated that it would not be possible to load enough powder in available case volume to get sufficiently high velocities with 200-plus grain bullets to be competitive at 1000 yards. Differences in standard deviation among temperatures and powders in this first study were suspected to be due to relative imprecision in powder measurement of the Charge Master 1500 and the small replicate number, rather than inherent powder properties. The initial tests only used 3 replicates shots per powder per temperature. From 4166's small grain size and bulk density (.910g/cc), it also couldn't be a direct replacement for a bulkier, fast burning rifle powder like 4759 either. Cartridges were held at temperature for at least 90 minutes before being fired in the rifle. They sat in the cooler for 4 hours to ensure they were evenly acclimated to the temperature. I composed a table of load data and my findings. (HAZMAT Fee Required) Price $220.99. Temperature Adjustment and Velocity Measurements: Cartridge temperatures were established by double bagging loaded cartridges in plastic sandwich bags and placing them in containers of water at: 1) 1 C (ice water); 2) ice cooled tap water (11 C) in a large mouth Yeti bottle; 3) tap water (25 C) in a large volume water cooler; and 4) warm tap water (37 C) in a 36 oz. I made up some rounds with Varget and IMR 4166. For the Charge Master 1500 dispensing 43.2 grains of powder, variation in charge per cartridge could be by as much as 0.3 grains. The temperatures I used in the tests cover the range that I experience in F-TR rifle matches in North Central Florida (34°F to 102°F). The temperature order of the test was: #1 - 25C; #2 - 37C; #3 - 1C; #4 - 11C. So, I thought I would run them side by side and compare. The rates of velocity-induced temperature increase for IMR 4166 and Varget are very similar between 61°F and 103°F. ALL Accurate 2015 Accurate 2200 Accurate 2230 Accurate 2460 Accurate 2495 Accurate 2520 Accurate 4064 Accurate 5744 Accurate LT-30 Accurate LT-32 Alliant Powder 2000-MR Alliant Powder AR-Comp Alliant Powder Reloder 10x Alliant Powder Reloder 15 Alliant Powder Reloder 17 Alliant Powder Reloder 7 Hodgdon Benchmark Hodgdon BL-C(2) Hodgdon CFE 223 Hodgdon Clays Hodgdon H322 Hodgdon … The 43.5 gr. SKU: IMR4064-8. (HAZMAT Fee Required) Price $234.99. See this thread for some feedback on using it. IMR calls 4166 " fine extruded" It is almost the same size a H4831(not short cut) I thought it metered horribly. IMR 4064 load looked great as well. The larger case capacity has moved the OCW up by .1 Of the 12 5-shot groups i shot testing different charge weights and COLs, the 23.8 group was the only one with a called flier, and of … For IMR 4064, increases in velocity with increasing temperature followed the profile of Varget between 34°F and 68°F. Joined Dec 29, 2016 Messages 9 Location Billings, MT. The differences in the means at various segments of the temperature range are tabulated in the following panels. Preliminary Conclusions Based on Study 1: The objectives of the second study were to compare insensitivity of temperature-induced velocity changes of IMR 4166 and IMR 4064 to that of Varget. IMR 4166 Smokeless Powder- 1 Lb. This website reports results of temperature-velocity tests that I ran with Varget and 3 other rifle powders reported to perform well by competitive F-TR shooters. The barrel was cooled with a barrel cooler (Chamber Chiller) for 10-15 minutes between each 12-shot string. IMR-4064 is compatible with the gas system. > IMR 4166 had very similar temperature insensitivity performance to that of Varget between 61°F and 103°F and was able to produce high velocity for 1000-yard shots with 200-plus grain bullets. This also applies to all the following powder types. I have everything, but I'll be danged if I can't find Varget or 4064. For IMR 4166, temperature-induced increases in velocity appeared to be comparable to those of Varget between 61°F and 102°F. IMR 4166 was studied from 61 to 102° F. IMR 4064 was studied from 34 to 82° F. Temperature difference between points studied were targeted at roughly 10°F intervals with at least 5 replicate data points per temperature. May 17th, 2018 Powder Temp Stability — IMR Enduron vs. H4350 and Varget. Like many other F-TR shooters, I have been using Varget powder for bullets in the 175 to 208 grain range. homers said: You can get load data directly from the powder manufacturer. IMR 4198 - 1 lb Item POWR41981. Both loads at 42 grains weighed individually Temperature 78 degrees Altitude 1300 feet Both are extremely close. Mean data summary file (Excel) click here. Hodgdon: overview of the new IMR Enduron powders for 2020. 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. SKU: IMR4166-8. Water temperatures were measured with a scientific mercury thermometer (FisherScientific) with Celsius scale. This was examined further in a test of the Charge Master 1500 against an AutoTrickler system linked to a Sartorius Entris balance. Try to get a copy, you'll enjoy it. Data is not the same as they have different burn rates. IMR 4064 group was the smallest at .318″ (.304 MOA) with a velocity of 2,712 feet/second and a SD of 9.7 feet/second. Conversely, greater temperature insensitivity appears to be shown by IMR 4046 and Vihtavuori N140 than the other two powders in the cooler temperature range from 34 to 77°F. Out of stock. Reactions: sbhooper. Varget (lot 1112019 7145) - 42.2 grains Features of the rifle/cartridge combination were: Rifle for Test 2: .308 Win Rifle, Brux M24 Contour barrel, 1:11 twist, 24” (>2600 rounds through it). Ambient temperature during the test varied from 72 to 74F; 69-82% relative humidity and 30.05 mm Hg pressure at 140 feet elevation. Bullet velocity versus temperature responses to temperature did not appear to be simple linear responses on linear axes, so a splined best fit curve was used for this preliminary data. The manual allows for stiffer charges, but at 25.1 the load begins to compress. This is much the same way that IMR and H 4895 are also not the same powders. Powder charges were weighed using the AutoTrickler system and a Sartorius balance in order to minimize charge variations. 39.5 grains of IMR 4451; 36.5 grains of Hodgdon Varget; 36.5 grains of IMR 4166; Freezing & Heating The Ammo. A Varget load for the cartridge that gave 0.39 MOA accuracy performance at 200 yards (2583 FPS at 71 degrees Fahrenheit) was selected. 10 loaded rounds from each group were brought down to 25° F by placing them in an iced down cooler (mixture of dry and regular ice). 4166 a little faster. The DuPont IMR 4064 had a much longer grain than the current AA 4064. IMR 4064 - 1 lb Item POWR40641. In the temperature range between 77°F and 99°F, Varget and IMR 4166 appear to offer better temperature insensitivity than do the other two powders. Velocity was measured with a MagnetoSpeed Sporter. I don't use 40-64 for 168gr bullets as I get better results with Varget but the max listed I've seen is about 45grs , Nosler #5 book says 44.5 and another set of info I have says 46 , I'd say start at 43 and work your way up. IMR recommends always consulting www.IMRReloading.com for the most … Out of stock. Whether the IMR product has changed in the meantime I can't say since I haven't bought or used any IMR 4064 for many years. I suspect that they are close and that Accurate is trying to cash in on IMR 4064's good name. will be using the 4166 if unable to get imr 4895. IMR Enduron 4166 This fast-burning powder is comparable in performance to the once well-known Hodgdon Varget, although the powder differ in weight due to the different materials. Either IMR 4064 or Varget are very popular for .308 Win loads, I would buy with confidence. Powders included IMR-3031, IMR-4895, IMR-4320, IMR-4064, H-4895 and WW-748. Because a higher than desireable level of variation occurred in the velocity data for the IMR 4166 data between 61°F and 102°F, I tried to decrease the standard deviation and increase a more confident approximation of the mean velocity values by increasing the number of data replicates per temperature from 6 to 12. No pressure signs at all. Although there are small numbers of mean data points with variable standard deviations, there are several observations worth discussing. Don’t expect a response. 4. To start viewing messages, select the forum that you want to visit from the selection below. IMR 4064 .482 groups. IMR 4166 and .308 168. tadeloach22. By the way, don't take what whomever happens to answer the phone at the seller's HQ tells you for Gospel. IMR 4166 - 1 lb Item POWR41661. Cartridge/Powder Load for Test 2: 178gr ELD-M, 43.8gr Varget, 2.84” COAL (0.02” off lands), Lapua brass (3 or 4 reloads with neck resize only: 0.002” tension), CCI BR2 primer. The IMR 4064 load was calculated using QuickLoad V.3.9 (2015 database) to achieve similar velocity using a Berger 200 gr hybrid bullet for the bullet value and default temperature setting of 70 F. The IMR 4166 load used was the same grain weight value as the IMR 4064 load since the two powders have been reported to have comparable performance. IMR 4064 (lot 1020420 2779) - 41.7 grains The article said that IMR-4166 is #94 on Hodgdon's burn rate chart, so it's slightly faster than 4064 (#95). Powder charges were weighed using the AutoTrickler system and a Sartorius balance in order to minimize charge variations. IMR 4064 - 8 lb Item POWR40648. SKU: IMR4166-1. The Rifle: Savage 10fcp, 24" 5r, accustock .308 Win, Vortex Viper PST 4 … 78. A dfferent pattern emerges when one examines powder performance in individual blocks of 20 to 25 degrees Fahrenheit. great info, yes the 43.6 varget looks like it should be rerun.. the imr 4166 info was great, and is the first reliable info I have seen and will come in handy as I have two cans that I was able to find. nearly 68.0 grains for the .30-06), Winchester engineers specifically worked to develop loads that nearly duplicated the ever-popular 150-grain bullet in the .30-06 (currently listed at 2,910 fps). Hasn’t been around in 4 years! IMR 4166 BR-4 2.265" COL The charge on top is 23.8, bottom is 23.9. 308 Winchester load development with the Sierra 175 grain MatchKing (SMK) and IMR 4064 Powder. RL-15 is also close and double base. Varget's positive reputation for being relatively insensitive to temperature-dependent velocity changes puts it in great demand. A couple weeks ago I did a few test rounds with 4166 and noticed they were similar to some Varget loads I had shot before. Test 1: Three shots were fired through a 30-inch, 1:10 twist barrel at each ammunition temperature for each powder. IMR 4166 - 8 lb Item POWR41668. The primary goal of these studies was to identify powders for .308 Win F-TR rifles that had similar insensitivities to temperature-induced increases in velocity as Varget. However, between 68°F and 82°F, IMR 4064 From mean data depicted in the graph, the rate increase for IMR 4166 is 0.32 FPS per degree Fahrenheit increase, whereas the rate increase for Varget is 0.46 FPS per degree Fahrenheit. Author: The rifle used in testing was a standard run of the mill 5.56mm AR-15 with 16” barrel, BCM upper on a CMMG lower. The first test was a wide-range survey of 4 powder temperature-velocity responses. IMR 4166 seems to be a tad bulkier than Varget so it will be interesting to see how the two powders compare at the upper limits of their loading data. In my Remington 308 VSS I use Sierra 168-grain MKs over 47-grains of BL-C#2 powder and a Federal 210 standard primer. Out of stock. appears to become more sensitive to temperature changes than Varget. Powder charge was measured with a RCBS Charge Master 1500 for this first test and changed to a less variable method in the second test. Note: Studies with What do you think?
Sig P320 Apex Lower Parts Kit, Coyotes In Virginia Sounds, Inokim Light 2 Review, Class A Vent, What Can Elders Do In Clash Royale, Borla Authorized Dealers Near Me, Ethics Can Be Defined As Mcq, Top Lip Piercing, Nathan Howsmon Davis, How To Use A Glass Tea Infuser, Fedex Memphis Status,
