![]() 7gr and will stay around the same fps - the 135 and 165 also shot well in 30-30 as long as it was under 1100fps - they advertise these as. Missouri Bullet also offers a 165grn bullet and it only needs to drops the powder charge about. I also really like the Leatherhead 220grn Hi-Tex coated I sold my Handi and only shoot Ruger and AR now so I have gone to this bullet for feeding in magazine fed guns - this bullet with 9.5gr of 4227 will run my unsurpressed AR all day and stay subsonic The 24 loads also run my AR without suppressor as long as I use a 10/20rnd straight magazine they will not feed through any curved mags ![]() If you go up to the heavies I also shot the MBC 245grn Hi-Tek coatedĨ.5grn of Alliant 2400 avg velocity 1,030fps IMR 8208 XBR Smokeless Reloading Powder is perfect for. ![]() I think wou can still find that bullet.5.0grn Unique with Missouri Bullet Company 135gr Hi-Tek coatedĪverage velocity of 5 shots 1138fps - extreme spread of 25fps and standard deviation of 10 IMR 8208 XBR Powder is a super short-grained, extruded powder that meters very well. But that was a while ago and I would have to do a major back note search. Worked the best on the vermin, and that one I used Bullsey. Loading 300 Blackout - ep 12 - More subsonic tests with IMR-4198. And they were single shots with these loads. 223 case necked up, 300 whisper is a wildcat based on a. SKU: N/A Category: Powders Tags: 357 mag imr 4227 powder, 44 magnum imr 4227 powder, charge weight for 308 with imr 4227 powder, dupont imr 4227 smokeless powder, imr 4227 a good powder for, imr 4227 not working in savage smokeless powder muzzleloader, imr 4227 powder. Back then, most sources listed what many twenty-first-century handloaders would consider stupidly inadequate velocities, because companies listed every suitable powder. Hodgdon H110 Hodgdon H4227 Hodgdon LilGun Improved Military Rifle IMR 4227 Improved. I'm about to try 5.2gn and a 62gn head next. Other long-time IMR powders also work fine for reduced loads, including IMR-4227, IMR-4198 and IMR-3031, which were used a lot back when 10 zillion powders weren’t available. 224) 55gr FMJ Bullets w/ Cannelure 500-ct 11 223 and Magtech Range. Tried 2 other powders that were fast and I think Bullsey was one of then but 223 Here's my results using trailboss in a 1:7 12' barrel 62gn FMJ, OAL 57.4mm 6gn supersonic 5.4gn 50 subsonic - could be because powder measured electronically 5gn subsonic 55gn FMJ, OAL 57.4mm 5gn supersonic 4.4gn subsonic. velocities respectively ranged from 1040 to near 1200 FPS as the charge climbed. Also I noticed that the 4227 seemed to be inconsistent on velocities. The 1-7 shot a little better and was harder on the vermin. When I started shooting the 4227 loads (17.0, 17.2, 17.4, 17.6, 17.8) with the XTP's, the first shot would chrony 50 or so FPS faster than the next 3 shots, every time. Vmax style bullets were two long and did not shoot as well. 223 Remington necked down to 20 Caliber, with the shoulder modified to 30. I remember just a slight bit more powder for the longer barrelīut not very much. Donate Now Goal amount for this year: 6000 USD, Received: 4955 USD (83) Our Annual server fund drive is going on now This donation drive helps fund Cast Boolits for an entire year, and helps support our 2nd amendment rights You. 16inch was a little sharper report with a shorter barrel. IMR4227 (not H4227) load data for various calibers cast bullets. 300 AAC Blackout 205 Grain Subsonic Hunting Tipped Brass Cased Centerfire. 55grain Hornady SX seemed to work the best as they are short and don't need as fast a twist. We have some IMR 4227 and Federal gold match AR small rifle primers to load. I worked with this a few years ago in a couple Ar's. i'd probably bump them up a few 10th's and work down but it doesn't mention it so YMMVĬase: Winchester Twist: 1:12" Primer: Winchester SR, Small Rifle Barrel Length: 24" Trim Length: 1.750" Anybody have any experience with Subsonic 223 if so do you have a recipe I want to try and make some an don't have a clue what to use I have LilGun, Trailboss, IMR 8208 XBR, IMR 4895, 4320, 4198, 4227, 4350 Bullets in 50gr, 55gr Hollow and soft point and 55gr FMJ, CCI 400 and 450 Small rifle Primers or is not possible. Subsonic and reduced velocity rifle ammunition cartridges are disclosed. you may find that pistol primers will give better ignition and lower es/sd but i'd use the 400's if thats all you got. With subs start high and work down till below the speed of sound. the shorter the bullet the better as at subsonic velocities especially in a 1:9 and slower twist stability can become an issue. if your going to run a suppressor always make sure to check for stability/keyholing before using it with your can. also i'd use the 55gr soft point assuming it's a flat base. want to say trail boss and titegroup were the powders used.
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