imr 4166 load data 223 imr 4166 load data 223

(5.56 x 45 NATO) .223 WSSM .224 Valkyrie .224 Weath. However, Alliants relatively new Reloder 16 is an extremely temp-stable powder, with a burn rate that is a close match to H4350. We do not take backorders and our Tech Services team cannot take orders via email or phone. IMR claims that Enduron powders are not sensitive to temperature changes. 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. This Enduron series powder is temp-stable and accurate. IMR 4166 powder? for 223 | Sniper's Hide Forum IMR 7977 is the slowest burn rate Enduron Technology powder. This demand lead to an incredible 2.5 billion pounds of smokeless propellants being manufactured by DuPont for Allied Forces in World War II. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. 44gr 4166 Clean and inspect the cases, lube and full-length resize/decap, clean, and inspect them again. First run tomorrow. OAL 2770 Sierra Case _gaq.push(['_setAccount', 'UA-6323545-2']); 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; Sep 25, 2010 . A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. very consistent in .243 shooting 65gr vmax and 3550 fps. When placed and configured optimally, the LabRadar can measure muzzle velocity with +/- 0.1% accuracy, according to the manufacturer. Well, Im done Adulting for Today and Tomorrow. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. 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. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. In modern type guns, 4166 IMR Enduron Powder is a viable powder. Sounds familiar! Improved Military Rifle IMR 4166 Improved Military Rifle IMR 4320 Improved Military Rifle IMR 4350 Improved Military Rifle IMR 4451 Improved Military Rifle IMR 4831 Improved Military Rifle IMR 4895 Improved Military Rifle IMR 8208 XBR Improved Military Rifle SR 4759 Ramshot Big Game Ramshot TAC Ramshot X-Terminator Shooters World AR PLUS 2. Trail Boss is based on new technology that allows very-high loading density, good flow through powder measures, stability in severe temperature variation, and, most importantly, additional safety to the handloader. spitzer boat tail & imr 4166, .223 rem. New customer? Share the post "Powder Temp Stability: IMR Enduron vs. Hodgdon Extreme". 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. Guide to IMR Enduron Powders Temp Stable, Reduced Fouling, IMR Introduces New Enduron Powders: 4166, 4451, 7977, Guide to IMRs Enduron Powders What You Need to Know, IMR Enduron 8133 New Slow-Burn-Rate Magnum Powder, IMR Powders introduces IMR 4955 Enduron Powder. for 223. Was able to find a node fairly quickly and with a little seating adjustment, it's shooting .3 moa or better. The 4166 seemed interestingit matched my motorcycle jacket, but none of my reloading manuals had any data for it (it's that new). Many F-Open competitors are now using Reloder 16 with considerable success. Versatility with uniformity and accuracy. . 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). 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. Shooters has been keeping it around $20/lb if you buy in quantity. The IMR brand was created under the DuPont Corporation. 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. 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". 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 Share the post "Guide to IMRs Enduron Powders What You Need to Know", Powder Valley Inc. (PVI) now has the new IMR 4166 powder. Ive heard some say 4166 is similar to 4064, which I haven't used or have on hand currently. Picked up a lb of this stuff to do a little testing with, see if it compares to Varget for accuracy in .223. The IMR brand was first introduced under DuPont in the 1930s. SUBSCRIBE TO OUR NEWSLETTER TO STAY UP ON THE LATEST. Loading density is perfect for magnums, contributing to superb uniformity. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. Cant find Hodgdon Varget on dealers shelves? worst groups at .5 moa most groups around the .3 moa mark. Sierra Load Data - XXL-Reloading JavaScript is disabled. To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. You are using an out of date browser. the accuracy is the same as varget but the velocity is a bit higher with a couple of 10ths less powder. Each of these are still favorites with handloaders today! 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. Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. It is formulated to reduce fouling and to be stable across a wide temperature range. 4451 is the medium burning powder, for medium cartridges like the .30-06 Springfield and the .270 Winchester. (see note 1 ). I bought all three. 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. (SEE: Temperature Effects On Zero on KestrelMeters.com.). UPS has officially stopped shipping guns? So they would likely show much larger swings than what these four top-performing powders showed. The responsible reloader always errs on the side of caution, so I decided to stop there. As with all load development, reference a credible reloading manual, then start at the minimum and work up in small increments. .45 ACP and .38 Super, while their rifle offerings range from .223 Remington to .30-06 Springfield. Will purchase more. Love the copper fouling eliminator makes cleaning a breeze, Posted by Paul rosenkranz on Nov 9th 2021. Load data for 50 loads in caliber 7 x 57 with .284 | 139gr . Sign up to get updates and access to exclusive promotions. The 223 is the most common round. For more information and IMR 4166 LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. IMR 4166 in .223. - 24hourcampfire First used in battle in 1805 by United States naval forces against pirates off the coast of Algiers, DuPont supplied more than 80% of Allied Forces powder needs in World War I. VAT (where applicable), shipping costs and possible delivery charges. 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. I've only seen a handful of load data for IMR 4166 and 223, it was 69 Sierra and 77 Sierra. The kid's rifle didn't like this powder, but perhaps yours may. Anyway, I like the 4166! The IMR 4166 shows loads for a 69 hpbt. Load for 7 x 57 with .284 | 139gr | Sellier & Bellot SPRN bullet The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. IMR 4166 is one of IMRs Enduron family of propellants. 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. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. So they would likely show much larger swings than what these four top-performing powders showed. Subscribe to the free newsletter and do not miss any news or promotions. However, due to the super short kernels, metering is virtually as good as a spherical powder. then consider IMR 4166. Has anyone left switched from 4064 to 4166 without losing accuracy? 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.. In today's shooting you can clearly see the scatter that centers at 45.5 and the obvious OCW at 46.2. (function() { it's a bit bulky when pouring into the 223 case. 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. 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. For example, variation in velocity does NOT appear to be linear across the full range of temperatures. The Enduron Technology powders are available in one-pound (1 lb) and eight-pound (8-lb) containers from quality reloading retailers. so I am thinking till powder does come available, load one or 2 levels under Max for a 223 into the 556 cases. IMR 4064 or IMR 4166 | Shooters' Forum Learn more about Enduron powders at www.enduronimr.com. When we are sold out, we are sold out. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. CC 300 BLK ($53.49 per box of 20), Law Tactical Gen 3-M AR Folding Stock Adapter, 2022 Editors Choice Award Winning Silencer Central Banish Backcountry Suppressor. 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. I live in florida and shoot the same load all year. First load. temperature stable too. (function() { Anyone seen/tried this combo? IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. This helps attain low ES/SD in velocity and pressure, which translates to improved long-range accuracy and tight verticals. Today, only the newest reloading fuels can exceed that with a 55-grain bullet in the commercial .22-250. 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.. Minuteman. For info on other IMR powders, visit www.imrpowder.com. Learn more about Enduron powders at www.enduronimr.com. You may not reproduce original text or photos without advanced permission in writing. It acts a whole lot like Varget, but is much easier to find. Cant Find Varget for Sale? _gaq.push(['_setDomainName', '.accurateshooter.com']); Shooter's Reference Load Data for .223 Remington .223 Remington - Published Manufacturer Loading Data Shellholders: Hornady #16 Lee #4 Lyman #26 RCBS #10 Recipe Type: Rifle 55,000 PSI STANDARD SAAMI COMMERCIAL SPECIFICATIONS Pistol CUSTOM LONG THROAT Reduced Load Bullet Weight: ALL 30 gr 34 gr 35 gr 36 gr 40 gr 42 gr 43 gr 45 gr 50 gr 51 gr 52 gr Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. IMR now offers five (5) Enduron powders: IMR 4166, IMR 4451, IMR 4955, IMR 7977, and IMR 8133. In rifles, this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet and 221 Fireball. both should give you specific info. Re: IMR 4166 in .223. This is a true magnum propellant yielding outstanding performance in .300 Winchester Magnum, 7mm Remington Magnum and .338 Lapua Magnum. IMR load data | xxl-reloading.com ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. More about this powder: IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. Load data should be forthcoming pretty soon. IMR 4166 | Hunt Talk This powder is comparable to Hodgdon H4831. 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). IMRs press release provides these descriptions of the new Enduron propellants: IMR 4166 is the first in the series of Enduron propellants. IMR is an acronym for Improved Military Rifle. 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. Some powders are more affected by changes in temperature than others. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. IMR 4166 performs well in the .308 Win (for bullets up to 175 grains) and in 6mm cartridges running the heavier (95-107gr) projectiles. Shooters will find IMR 8208 XBR yields max velocities and 'tack driving' accuracy. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. IMR offers a modern line of powders with Enduron Technology which is also marketed to have extreme temperature stability. imr 4166 for sale | Buy Cheap| Reviews| Reloading Data| Burn Rate msinc IMR 4166 + 55gr V-Max in 223 Rem - Long Range Hunting Forum Practical Riflery and OCW Forums-IMR 4166 vs. Varget side by side Fired from My Rock River Arms National Match upper, these rounds consistently fetch accuracy in the .75 to 1.25 MOA area. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Second, Enduron powders are all very temp-stable. IMR 4166 in .223. - 24hourcampfire 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. The Hodgdon powder company is world renowned for introducing revolutionary technology to the reloader. Anyone seen/tried this combo? 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. Very consistent velocity, quality powder, not so good on powder throw due to it being a stick powder. Was able to find a node fairly quickly and with a little seating adjustment, it's shooting .3 moa or better. Environmentally friendly - Enduron technology is environmentally friendly, crafted using raw materials that are not harmful to the environment. 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. IMR 4166 in .223. Bullets ranged from 50- 77 grain , same bullets shot very well with Varget anf H4895 . Varmint shooters with small-bore cartridges love it. It provides top velocities and performance with heavier bullets in medium-sized magnums. 3, tried this powder and same bullet in the grandson's Ruger77 .223. 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. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. It is primarily a pistol powder but has some application in rifles. Was looking for an equivalent powder from H4895 when I ran into the 4166. When I hit that node It's going to be great. Subscribe to the free newsletter and do not miss any news or promotions. 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. These are the first groups with this powder. The 6.5 responded well to the precisely weighed powder charges in carefully prepared cases. Reference Data - IMR Very happy with the results. Tried their 7977 in a magnum rifle and it had same accuracy as H1000. The Hide Armory. 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 4955 is a medium burn speed powder, falling in between IMR 4451 and IMR 7977 in burn speed. . Share your experiences with other customers. 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. Site Notices. To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. This powder is comparable to Hodgdon H4831. I'm very happy with this powder. Thats because a change in temperature can affect the trajectory or flight path of the bullet in two well-known ways: 1. For more information and IMR 4166 LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. Below you will see today's round robin from 45.0 to 46.4 grains of 4166. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. Be Alert: Publisher cannot be responsible for errors in published load data. For more information, go towww.P65Warnings.ca.gov. var _gaq = _gaq || []; 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. : (913) 362-9455; E-mail: [emailprotected]; Web: www.imrpowder.com, (Disclaimer: The loads described above were safe for this rifle, on this particular day. Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Shooter's Reference Load Data for .223 Remington ALL THE LOAD DATA YOU'LL EVER NEED ALL IN ONE PLACE! IMR now offers four Enduron powders that cover a broad range of burn rates. 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. . Reloading 223 Rem./5.56mm is mostly the usual routine. IMR Enduron 4166 Powder | On Target Magazine 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. Sierra load data for over 95 Berger bullets in over 65 calibers with all suitable powders on the market. VISIT THE RDC WHITE HOTS White Hots 50/50 is a 50 Caliber, 50 grain pellet for muzzleloaders. Reloading Data .308 Winchester (IMR-4166 Data) Metallic - Load Data IMR is bringing out a new series of advanced-formulation extruded powders. You may not reproduce original text or photos without advanced permission in writing. Plain cartridges, in contrast, turned in an average extreme spread of 51 fps. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Its a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. Great stuff! Most powders arent specially formulated to be temperature stable. ARCHIVED. Grab some at your nearest dealer, or for more information, contact IMR Powder Company; Tel. Final diagnosis: This powder is certainly a winner in the accuracy field, and if the cleanup continues to be this simple it is sure to find a home on my reloading bench. Importantly, it seems to be a good substitute for unobtanium Varget powder. In addition, it is a longtime favorite of Match shooters. 17 reviews. IMR states that IMR 4166 is a versatile, match grade propellant. This website uses cookies to ensure the best experience possible. For info on other IMR powders, visit www.imrpowder.com. Full Member. I don't see any info for the A-Max though. 5 rounds shot Got IMR 4166 today, first impressions on loading For this reason, the IMR brand powders truly are Legendary products. Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. I went online and found data published by the manufacturer, so I worked with that for my 30 06. 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. First ladder turned out great! Guide to IMR Enduron Powders: 4166, 4451, 4955, 7977, 8933 The main features of the Enduron series are copper . Reloading 223/ 5.56 for the AR-15 with IMR 4166 - YouTube It may not display this or other websites correctly. Youll also find official load data in the Hodgdon 2020 Annual Manual. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. 4166 is the fastest burning powder, for cartridges like .223 Remington and .308 Winchester. 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. 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. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. OAL 2770 Sierra Case Tested: Modern Reloading Powders for the .30-30 Win. We place limited powder inventory for sale on a regular basis on our website. IMR recently released a new line of powders with Enduron Technology which is also marketed to have extreme temperature stability. IMR Enduron 4166 | Hodgdon IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. Shooter's Reference Load Data for .22 - 250 Remington No reviews found. I'm using this in my Tikka CTR 223 under 73 gr Berger BT target bullets. IMR 4166 Daily Bulletin - AccurateShooter.com 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. 3, e-mail Hornady and the powder mfg. This website uses cookies to ensure the best experience possible. IMR Enduron 4166 | Hodgdon I'm very happy with this powder. At 600 yds, the POI with 4166 loads was about 1.2 MOA higher than when using 43.2 gr. For a better experience, please enable JavaScript in your browser before proceeding. Precision shooters will find an Enduron option well-suited to most of the popular precision cartridge types. IMR 7977 has the slowest burn rate among the Enduron Technology powders. Or maybe have QuickLoad data? 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. $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. Loading density is perfect for magnums. 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. 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. CL 2.005 Trail Boss Reduced Rifle Load. _gaq.push(['_setDomainName', '.accurateshooter.com']); 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. I did the usual load development testing and found that 43.0 gr. 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. At the 2015 Shot Show they did just that and released the IMR Enduron Line. 5 rounds shot I loaded 23.5 gr in Lapua brass with no trouble using a 10" drop tube: http://www.xxicsi.com/powder-funnel.html Then Try IMR 4166 Powder", A couple seasons back, PrecisionRifleBlog.com (PRB) published a significant field test of powder temperature stability. I was planning to switch to 4166 for my .308, but it seems that it has also become nearly impossible to source. bolt reload data with 65gr. PRBs testers talk about those things, provide a few other insightful views of the data, and discuss tools that can help you manage temp/muzzle velocity in the field in their full post. 7977 is the slowest of the batch, for shoulder thumpers like the .338 Lapua and the .470 Nitro Express. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. We need to get back to the good old days! CLICK HERE to Read Full Powder Temperature Stability Test on Precision RifleBlog.com. With no pressure signs up to 45.8 grains of 4166 I decided to push further and see what I could get.