Have not got a chance to shoot this powder yet but I do have a bunch of charges weighed up and I must say while weighting it out the consistency of the powder looks great. I purchased this powder to reload 45-70 for my sharps rifle, I dont load them to hot as I want something enjoyable to shoot all afternoon target shooting. I have one of the ancient Ohaus Du-o-Measures and while it cuts a kernel here and there, it meters far better than, say 4350. Ive seen a lot of his targets that further confirm the fact that accuracy in bolt actions can be improved in this manner. 53 0 obj << /Linearized 1 /O 55 /H [ 1080 229 ] /L 77671 /E 25013 /N 10 /T 76493 >> endobj xref 53 33 0000000016 00000 n Its performance approached the .222 Remington Magnum (center) introduced in 1957. Shoots consistently out of my muzzleloader. Buy 5 Lbs. Powder: IMR 4198 36.0 grains Primer: CCI 200 AOL 2.650 I shot some of these this week, and I had three five shot groups all . First, almost all military and some commercial rounds have crimped-in primers. Good luck and best wishes. I think I got it for 45-70 but never used it. In spite of the .223 Remingtons name, standard bullet diameter is .224-inch. I highly recommend this powder and fully recommend this company. Not saying whether or not I tried the IMR in a AR? Another one is IMR 4198 (21.6gr.) IMR4198 is all Ive used in 223 and 222, since about 1982. Savage Arms Inc. bolt-action rifles produced since November 1, 1995, including the Axis, Models 10, 11, 12, 16, etc., have been fitted with 1:12, 1:9 and 1:7 twists, though it seems that of late the company has settled on the 1:9 twist as standard. match bullet. Remember, I am talking about bolt rifles. It's a very versatile powder with many applications. You are using an out of date browser which is likely incompatible with our website. 1 Single-Shot Rifle: Tips to Improve Its Accuracy, Mossberg Patriot Long-Range Hunter Bolt-Action Rifle: Full Review. Industry pressure guidelines for the .223 Remington were originally established at 52,000 CUP but today have been changed to 55,000 psi, while CIP is listed at 62,366 psi. I was down to the bottom of the can of my old supply and was very happy to be able to get a new supply from you. Current production IMR-4198 should be Canadian-made and can cycle most AR15's when loaded to maximum loads. What I tired of was measuring each round since, as others have noted, does not meter well in the RCBS. Ordered this to reload 444 marlin. It gives good results with good economy, but does not meter so well. 0000002505 00000 n 0000001721 00000 n I have on hand a few pounds of IMR 4198 that I normally use in my 6.8, and was looking into loading some 55 grain 223 rounds with it. 09-10-2014, 10:25 PM #6 marshall623 Boolit Master Join Date Jan 2011 Location Va. Posts 656 Its the most accurate powder I've used in my 14" contender with 55gr. The Lee Factory Crimp die also works very well and provides a reasonably uniform crimp, even when using cases that are not all exactly the same length. Maybe you'll have no issues but lot's do with 4198 powders in AR's. 2 of 7 failures to cycle the bolt back far . The selection of suitable powders for handloading the .223 Remington is huge, with some developed specifically to optimize .223 performance. Such data should be approached by working up from published starting loads. I use 4198 and find it to be a reasonable powder for my application of it in the 55 gr. While .224-inch thick bullet selection for the .223 Remington is broad and typically ranges in weight from 35 to 90 grains, terminal performance varies. However, my handloading mentor, John Redmon, who actually got me started in handloading the 223 Rem. This powder works great for my 45/70 gov, loads. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Lot's of problems reported using light charges of 4198 especially with short stroking and not picking up the next round in the magazine. Old Dupont IMR 4198 can be loaded to 21.5 gr with 55gr bullets. Used to be very popular in .221 FB, .222, and .223. I weighed more than 10 different lot numbers of 5.56 cases from different manufacturers, as well as checking their water capacity. Use in smokeless muzzleloader with great success. . Lighter bullets may be seated to a shorter COL, whereas the heavier (longer) bullets tend to fill up the extended NATO-spec chamber throat/leade. Metered beautifully, at the charges I was using, it was very dirty. I tried AA 5744 and Hodgdon 322 under Hornady 300gr JHP and just couldn't get decent groupings consistently, despite hand weighing every charge. Reloading101. All Rights Reserved. I found a pound in my stash. Ive walked the walk, and now I want to share what Ive learned. The .223 Remington is America's favorite cartridge according to rifle and ammunition sales. Then I trickle the rest in with a battery operated Hornady Vibarator Trickler. My barrel is a 1:8 twist though so I switched to a heavier bullet to tighten the groups. You are using an out of date browser. Another step Ive found to be necessary when reloading for 223 Rem./5.56mm autoloaders is verifying the headspace. I've always used both 4895 powders for my military bolt guns, but have heard it gives good results in the 223/5.56 caliber. Can't go wrong. A Savage Model 10 Predator Hunter Max .223 Remington was used to develop the accompanying load data. Couldn't hurt to try. Hello guys and thanks for the replys. MSDS Start low and work up as always. 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 IMR 4198 $52.99 - $376.99 4.75 39 reviews This fast-burning rifle powder gives outstanding performance in cartridges like the 222 Remington, 221 Fireball, 45-70, and 450 Marlin. I generally prefer cutting the crimp away. Very accurate and consistent. This means you have the option to read your magazine on most popular phones and tablets. Make Offer "Professing themselves to be wise, they became fools" The Apostle Paul in Romans 1:22. Let me ask you this. But than again not knowing what you use for a powder measure'r ? and lately .223 Rem. Special tools are made just for this purpose. You might be able to chamber that round in your bolt gun by forcing the bolt to close, but youll likely jam the action in an AR that the forward assist cant overcome. respective bolt-action designs in the 223 Remington. But because of its grain size being so small. I got a 8 pound key of 4198 for my wifes bolt action 223. Had pierced primers at 48 grs of CFE223 under a 168 SMK in an LR 308. The le-de-France (/ i l d f r s /, French: [il d fs] (); literally "Isle of France") is the most populous of the eighteen regions of France.Centred on the capital Paris, it is located in the north-central part of the country and often called the Paris Region (French: Rgion parisienne, pronounced [ej paizjn]). Just that, in most applications, you wont find a significant difference than if you simply segregate your cases by headstamp. So no metering problems. The IMR 4198 POWDER is highly stable due to the presence of high-quality chemical stabilizers used in its preparation. There is no single max load, since every action, barrel, case, primer, bullet, and lot of powder is different. IMR 4198 isn't the best powder for 69 gr. Will buy more when its available. You will get great groups with the V-max but not like a 52 or 53 match bullet. If I find a bad one, I check the rest and put any that fail to fit the gauge aside. It worked fine. I just finished shooting a batch of 53 BTHP using 19.5 grains..it was one of the softest shooting loads i've shot. A forum community dedicated to all firearm owners and enthusiasts. There has been considerable commentary suggesting that the 5.56 NATO case has less capacity than the .223 Remington, and therefore loads must be reduced accordingly. Exactly what I was looking for for my 52 and 53 grain rounds. 2023 Outdoor Sportsman Group. How much of the 4198 do you have ? The bullets nose profile, i.e., the ogive shape, significantly affects the cartridge overall length (COL). Ten weighed cases averaged 89.4 grains (without primers) and held 30.8 grains of water. waterfwlr Apr 30, 2015 #15 Just a note that if you research using IMR or H4198 you will find it's the most problematic powder for reloading AR's. 0000009273 00000 n I haven't had any problems what so ever with it. I need about 25 rounds per "match" with 1 or 2 matches per week for league shooting. We'll see. More about them later. Don't know how things stand today but the 5.56mm round was originally developed with a stick powder very much like IMR4198. The kernels were shortened to improve metering and necessary elements were added to make it insensitive to hot or cold temperatures. You guys and gals have thrown a lot of information my way. That would require a call on your part. I went down to 46.6 and web expansion is at .0015, which indicates high pressure. Albert Einstein". Google" port pressure ar15" Location and size of the port has a direct effect. I loaded ammunition with a variety of bullets, including the Hornady 55- and 60-grain Spire Points (w/o cannelure), 55-grain GMX, Nosler 60-grain Partition, 55-grain Trophy Bonded and Barnes 50-, 53- and 55-grain Triple-Shock X-Bullet, with each producing excellent results. Other bullets are designed to decrease drag and help extend the effective range of the cartridge, making them better choices for bucking wind and hunting in open country. Burn rates range from IMR 4198 (fastest) to CFE 223 (slowest). My current favorite for the .223/5.56 is Ramshot Tac, but have used over a dozen powders from Accurate 2015 to H-4895 over the years with better results than 4198. Competition shooters know that the bullets position in the chamber throat/leade can significantly affect accuracy. 0000012032 00000 n Barrel Break-In: What It Is. Sure Shot: The barrel has a 1 in 8 twist. Works if you only shoot that cartridge in the same bolt action rifle. Posts: 2203. 3177 fps from my bolt gun. Let us know how it goes. Stick powders that meter like ball. I found the IMR 4198 powder is the most accurate powder for my 7.62 x 39 loads. With-out-doubt. Edit Product. Play with it, you might find that magical combination. Actually Sycamore, you are sort of right. Have loaded thousands of 50-55 grain in .223 with IMR 4198 begining early 80s. 25a - Remington model 48C, 22 cal rifle Remington model 48C, bolt action, 22 Cal rifle with clip 26 - 12 ga Bolt Action Model 583.20 JC Higgins 27 - Winchester Single Shot, Model 37, 20 ga 27a - Winchester model 50 20ga. In my Savage 10FP 1-10" twist my go to load is the 52 gr SMK with 19.8 gr of 4198 . 1, (4) Ruger M77 MKII All-Weather, (5) Mossberg MVP and (5) Ruger Mini-14 Ranch Rifle. Mediocre accuracy and velocity combined with lousy metering in the powder measure. That was last available around 2011. This Extreme series extruded propellant has gone through some changes since its inception while maintaining the identical burning speed of the past. Lever Action Pump Action Semi-Auto Single Shot . Knowing twist rate of your barrel would be helpful? Re. When i pick up the handle it wants to cut the powder, i relieve the preasure on the handle a couple of times and it will work it's way threw. I'm waiting for it to come back into stock. 225 V RIFLE RELOADING DATA Bolt Action Shotguns; Lever Action Shotguns; Over Under Shotguns; Pump Action Shotguns; Semi Auto Shotguns; Side By Side Shotguns; Single Shot Shotguns; Other Shotguns; Their was a run on powder and primers just like the old days during the ammo shortage. %PDF-1.4 % It was in the Hornady manual and the power was available so I picked it up. I use the Hodgdon data to reload all my different rounds. I never tried 4198 in an AR because my experience with it in a bolt action .223 was severely underwhelming. Begin with start loads and work up carefully to maximum powder charges while checking for signs of excess pressure. It worked great. The maxorder quantity of any powder SKU is, https://shop.hodgdon.com/sites/www/files/2022-04/2022-IMR%20Single%20Base%20SDS. As a result, firing 5.56 NATO ammunition in a rifle with a .223 chamber can result in excessively high pressures and is generally not recommended; however, .223 ammunition can be fired in a 5.56 chamber without issues. I take my grandson out shilooting every weekend and load up a hundred rounds of 223 every week for him. Around 1959, the .222 Special was renamed the .223 Remington to prevent confusion, but it was not introduced commercially until December 1963 in the Remington Model 760 pump-action rifle and was soon chambered in other rifles. I keep my muzzle velocity down around 1282 FPS. attentiveness vs attention imr 4198 for 223 bolt action. I do use IMR 4198, but in 45-70 gov't. 0000023906 00000 n Don, funny you would mention the 788. It was in the Hornady manual and the power was available so I picked it up. Can't imagine the 223 would be much different. (SAAMI) Bullet : .224, 62, Nosler HP 35631 Useable Case Capaci: 26.121 grain H2O = 1.696 cm Cartridge O.A.L. For a better experience, please enable JavaScript in your browser before proceeding. windshield wiper broke off while driving. There is a big difference between a 20-24" bolt gun and a 16" carbine. It cycles perfectly with factory ammo, so I do not feel it is anything with the gun. Seems that most don't like it because of the problems with their powder measures - not because of accuracy issues. They withstood many reloadings without failure. IMR-4198 was only made for a short time in Australia starting in 2007 when the exchange rates strongly favored Australia over Canada. The most accurate load I use for both of my bolt rifles (1/12 & 1/9 twist) is 20-21gr. The original load was a 160-gr. The load data chart shows that when shooting identical hand-loads in the bolt gun and the AR, the CZ 527 generally did better than the Sun Devil SD-15 with the lighter bullets, and the SD-15 typically grouped the heavier bullets better. Neither the writer, The Firing Line, nor the staff of TFL, nor QuickLOAD's author nor its distributor assume any liability for any damage or injury resulting from use of this information or information derived from it. Like a bolt gun, an AR has hard physical features, but the design and operation are more complex. If you wanted a longer range varmint load use the 53 V-max and 8208. New Hornady cases were used exclusively here and were uniform in weight, length, flash hole size, etc. It shoots good groups and cycles fine with my AR but after I'm done I'll go back to TAC 2 Reply textbooknarco 2 yr. ago and 222 Rem. sharps4590. Let me know Thanks! Pet Loads and Handloader are registered trademarks of Wolfe Publishing Company. Of the powders used to develop the accompanying data, there is not a single right or wrong choice, as all gave respectable accuracy and velocity. Benelli Lupo Bolt-Action Rifle Line Expanded with New Chamberings, Strasser RS 14 Evolution Consul III Bolt-Action Rifle: Full Review, Kimber Hunter Pro Desolve Blak - A Lightweight Heavy Hitter, Browning BLR Lightweight '81 Stainless Takedown Lever Rifle, Mossberg Patriot Predator 6.5 PRC Rifle Review, Review: Springfield Armory M1A Loaded Rifle in 6.5 Creedmoor, RCBS ChargeMaster Lite Review: Not 'Lite' on Ability, Remington Model Seven SS HS Bolt-Action Rifle Review. Wife said I had enough bullets, I don't understand! Meters well, burns clean. CT Nosler RN generates around 3400 ft.lbs. My RCBS powder measure hates this stuff. Current Oregon State Police Background Check Queue Status As Countdown To Measure 114 Vote Approaches. Clearly, barrel twist rate and chamber throat dimensions do affect accuracy. RL15 also meters well, I bought an 8lb jug of 4198 a couple years ago to do some volume loading. To cut to the chase. you looking for max velocity, or accuracy? It is also outstanding in cartridges like the 444 Marlin and 7.62 X 39. A friend gave me a little over 100 rounds of loaded .223. Results for the 150 gr. Who knows. IMR 4198 and H4198 are two of the go to powders, for years, in the 222 bench crowd. I have had better results with, well, everything else. The maximum listed by IMR for a 55 gr bullet was 21.5 gr back then (2001) and what i used. Sierra flat base over either 19.7 or 20 grs. Item : 1360. What the heck, the load isn't hot so I'll try it. When loading for a 5.56 NATO-chambered AR, the COL is restricted to 2.260 inches. I only wish it was more ready available. Your CFE 223 is more efficient for 69 gr. Many do not offer an especially high ballistic coefficient (BC), which is fine for most prairie varmint shooting. Compressed charges of slower-burn-rate propellants are more compatible with loading heavier bullets. Because burning propellant has only one purpose in a bolt gunto propel the bullet out of the barrel. But maybe there other members who disagree. , I found that after trying 3 powder choices that 4198 was very accurate and very very clean shooting. 0000003156 00000 n Location and size of the port has a direct effect. 50 gr. IMR 4198 is a relatively fast burning powder for the .223 Remington. I have a hand throw Hornady powder measure and it doesn't meter well. H322 does ok with Nosler 40 grain BT's but runs just over an inch. /x:^6"]eAfy(Pjch[nc2@:P%N!CvU}V5tFUs4ejng5bVCv[ le-de-France is densely populated and . ~?'W?5UEpx{PL&|i%sc?/y,\ o& g[A When we are sold out, we are sold out. I had about 250 pieces of Lake City (LC) 5.56 NATO brass already prepped and ready to load. In short, the NATO cases had less weight and capacity variance than commercial cases. I would certainly recommend it to others for its consistency. Of course I never got the 55gr bullet to work well in the 222 Rem either. My Savage 223 model 110 . These estimates are for .223 pressures. I may list it in the classifieds but thought Id mention it here. data showing how varying the bulletseating depth improved accuracy in his bolt actions. 0000001516 00000 n Thats all there is to it except for a couple of additional steps that are required to prep military cases and brass. We believe the 2nd Amendment is best defended through grass-roots organization, education, and advocacy centered around individual gun owners. For a better experience, please enable JavaScript in your browser settings before proceeding. I don't like how Hornady splits up the 223/5. Try this? You must log in or register to reply here. Have found it to be pretty accurate in my Rem model 7. x*",`P;e4Ok m > endstream endobj 85 0 obj 124 endobj 55 0 obj << /Type /Page /Parent 50 0 R /Resources 56 0 R /Contents [ 63 0 R 65 0 R 67 0 R 69 0 R 71 0 R 73 0 R 75 0 R 78 0 R ] /MediaBox [ 0 0 387 603 ] /CropBox [ 0 0 387 603 ] /Rotate 0 >> endobj 56 0 obj << /ProcSet [ /PDF /Text /ImageB ] /Font << /F1 58 0 R /F2 59 0 R >> /XObject << /Im1 76 0 R >> /ExtGState << /GS1 81 0 R /GS2 83 0 R >> /ColorSpace << /Cs6 57 0 R /Cs8 61 0 R >> >> endobj 57 0 obj [ /ICCBased 80 0 R ] endobj 58 0 obj << /Type /Font /Subtype /Type1 /FirstChar 32 /LastChar 151 /Widths [ 278 278 355 556 556 889 667 191 333 333 389 584 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 278 584 584 584 556 1015 667 667 722 722 667 611 778 722 278 500 667 556 833 722 778 667 778 722 667 611 722 667 944 667 667 611 278 278 278 469 556 333 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 334 260 334 584 350 0 350 0 0 0 0 0 0 0 0 0 0 0 350 0 350 350 0 222 333 333 350 0 1000 ] /Encoding /WinAnsiEncoding /BaseFont /OKLPHC+Helvetica /FontDescriptor 60 0 R >> endobj 59 0 obj << /Type /Font /Subtype /Type1 /Encoding /WinAnsiEncoding /BaseFont /Helvetica-Bold >> endobj 60 0 obj << /Type /FontDescriptor /Ascent 718 /CapHeight 718 /Descent -207 /Flags 32 /FontBBox [ -166 -225 1000 931 ] /FontName /OKLPHC+Helvetica /ItalicAngle 0 /StemV 88 /XHeight 523 /StemH 88 /CharSet (/one/eight/three/V/space/bullet/R/I/F/L/E/O/A/D/N/G/T/S/a/v/g/e/M/o/d/l/\ four/zero/two/quotedbl/x/six/W/i/n/c/h/s/t/r/period/nine/five/C/m/comma/\ H/f/b/u/quotedblleft/hyphen/quotedblright/w/parenleft/k/parenright/p/quo\ teright/y/exclam/seven/B/emdash/j/U/K/q/P/z/slash/Z/semicolon/X/asterisk\ /J/ampersand/Q/question/numbersign/colon) /FontFile3 79 0 R >> endobj 61 0 obj [ /Separation /PANTONE#20355#20C 57 0 R 82 0 R ] endobj 62 0 obj 1814 endobj 63 0 obj << /Filter /FlateDecode /Length 62 0 R >> stream Shoots outstanding ! 0000012054 00000 n Never used it, don't know much about it. Reloading data for 29 loads in caliber. I'm not a 223 shooter or owner however, with the two cartridges the 223 more less evolved from, the 222 Rem. Tips, techniques, and equipment are applied to these classroom discussions on how to become more proficient and successful at making long-range shots while hunting with AR-platform rifles. This has shot one hole groups for years. The three-blade cutter is permanently and precisely mounted on a steel base to assure proper depth and angle of the resulting chamfer. Used to be when you asked about choosing a powder there was one answer. IMR POWDER 4198 8LB. Wilson Combat Paul Howe Tactical 6.5 Creedmoor: Full Review of the Versatility Champ, Sweet Scents of Gun Solvents and Oils: 12 Perfumes for Firearms, 10 Great .22 Mag Bolt-Action Rifles Right Now, Ruger No. cartridge case severely limits how much you can vary bulletseating depth, so I havent done much of it. Do you mind giving me the IMR4198 load you used on the 50 grain? I have loaded 18.5 grs with a 55 gr bullet , still cycled the M16 action. I had a 222 and it wasamazing in that cartridge. Other powders I've had some success with accuracy are H4895, IMR-4895 and even IMR-4198. bullet weight. . Sierra lists 21.8 gr maximum of IMR4198, for there 55 gr bullets, fired in a Colt 20" barrel Ar15. 19.5 gr. The .223 Remington has been chambered in a variety of rifles and action types. IMR 4198 has been my .223 powder since about 1981. *Must have a registered ARFCOM account to win. Have tried 4198. L6: 2.260 inch = 57.40 mm Barrel Length : 16.0 inch = 406.4 mm Predicted Data for Indicated Charges of the Following Powders. Outstanding. Some swage, while others cut the pocket rim material out of the way. Select data that corresponds with a rifles twist rate to achieve top performance. Its my go-to powder for cast 308 loads in several rifles. The case was based on a lengthened .222 Remington that offered powder capacity and velocity increases. 4198 is a fast burning powder, and you will get piston "short stroking" in an AR which will cause FTF issues. I've had friends that couldn't get a gun to shoot good groups,and ran this load in them,and got great results. Excuse my ignorance. If youre not shooting a single-shot rifle, the length of the magazine box may dicatate the maximum COL possible. None of the cartridges in the accompanying data were crimped, as they were fed and fired in single-shot mode. 19.8 grains gave me better accuracy than the loads I had charged with W748 and the same projectiles. bullets in .223 Rem., IMR 4895 would be a better choice but in times of scarcity we must use what we can get. I tried 7 other powders. I have recently finished up the last of my H335 and I have been unable to find any to replace it with. The load data says a min of 18.8 grains up to a maximum of 20.4. This is simply not true. Starting at 20.7g, and going up in .5g i. Heav-ier bullets were excluded, as I am unaware of any commercially made .223 rifles with a twist rate faster than 1:8 (with the exception of the previously mentioned discontinued Savage rifles), which is generally necessary to stabilize select 75-grain and most 80- to 90-grain bullets. 0000002396 00000 n Hodgdon offers more than a dozen different propellants for reloading 223/5.56 ammo. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I use this powder in my Grendel load development with great success. SKU : 941988. JavaScript is disabled. I always grab what I can when I see it for sale. Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: Handloading, Reloading, and Bullet Casting. With an Accu-Fit stock and left hand adjustable bolt, this rifle is a perfect choice for anyone! It is also outstanding in cartridges like the 444 Marlin and 7.62 X 39. They typically weighed between 90.5 grains and 92.5 grains and on average held around 30.6 grains of water, measured level with the case mouth. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Mostly with the 52 grain bullets. . My go to for .444 and .45-70. Sign up to get updates and access to exclusive promotions. Wolfe Publishing Company | 2180 Gulfstream Suite A | Prescott, AZ 86301. J. Scott Rupp takes a first look at the Springfield M1A Loaded rifle chambered in the popular 6.5 Creedmoor. You will either find a node, or switch bullets to the 50-52 grain bullets and start over. In either AR action type, the buffer spring can be replaced to vary the spring rate over a limited range. Ive used 4198 for a few different loads with .223. It will remain my light bullet powder for my bolt gun which I expect to meter each round. It meters very consistent in my Dillon powder thrower. 0000003178 00000 n Best accuracy has been found at approximately 1/2 grain under published maximum. IMR4198 and a 52gr. IMR 3031 Smokeless Powder Smokeless Powder IMR Powder Co. IMR 3031 1 Container Approximate net weight 1lb. of muzzle energy and really puts the Hornady Leverevoltion to shame. While safe in my rifles using my methods of development, please use professional guidance for your own efforts. In the years since, twist rates in AR rifles intended primarily for civilian sales have also been offered with 1:8 and 1:9 twist rates, with some specialty rifles featuring a 1:6.5 twist to stabilize match bullets weighing up to 90 grains. 78gn of IMR 4198 has shot about .75-1 MOA (5-shots groups) in my Hankins barreled action with the 275BE and 275MH. I scale my charges most of the time. I also built some specialty 223 Rem. Happy to find it in stock! Using Hornady 40g V-Max and IMR4198. 21.8 grs 3,000 ft/sec in 11.5" BCM 1 in 7 CL, 22.1 grs 3,397 ft/sec in 18" Rock Creek 1 in 8 melonited fired suppressed. It works good in that straight walled cartridge. For the .223, I loaded 24.5 grains with the Speer 52 grain BTHP match bullets for about 2850 fps and started shooting 1/2" groups in my Ruger 77 long Range Rifle with very little experimenting. But I see H4198 and IMR4198 both mentioned here. The Fora platform includes forum software by XenForo. Hb```"V>M~ 'f 4cT8V_:`TEY eA% . The decapping pin in the sizing die may not be stout enough to knock these out without being damaged, so deprime them before resizing using a special die expressly made for this task. sometime since then, Hodgdon has gone back to Canadian-produced IMR-4198. I found this powder to burn clean an not much residue left in the barrel, I really like it. With the changes made to military loads and the 5.56 NATO cartridge by 1980, the rifling twist of mil-spec AR rifles was changed to 1:7 to better accommodate ammunition that contained heavier bullets. However, I can come close to the published maximums in any of my rifles, even the 26" barreled M-70. The H4198 load produced exceptionally light recoil but it still managed to cycle the bolt and strip another cartridge for every successive shot.
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