It is intended ONLY for barrels up to 14½".it occasionally sticks in the barrel of a 16" carbine. A Hornady 55 grain FMJ-BT/WC projectile was initially selected for testing with the software. This uses the same 100grn bullet but uses 8grns of powder and a small foam filler. I cant find anything on the COAL and min-max loads. Powder (25grns) looks like Vihavouri.ĮS also produce a round that will not cycle the action- different folks like different things. 1 ACMAN Member 319 Maryland Im looking for some help with load data for supersonic 300 blackouts using Hornady 150gr FMJ/BT (3037) and CFE BLK in a 16' barrel. Accuracy is adequate for it's intended mission out to 100m or so.īullet is filled with Tungsten carbide- so not cheep. Has cycled reliably in all the rifles I have tried it in- 1960's vintage M16, Current M4, HK 416 and ruger Mini 14.īullet (on the new stuff) weighs 100grns (old was 127grn) which is marginal on stability. Should be double the energy of a 40 grain and greater penetration due to bullet construction. Out of 16" barrels like our test HK 416's.it is often just supersonic (1180fps) but a few civi spec 16 barrels it stays just below the speed of sound. Can you load a heavy 223 bullet with a light powder charge to achieve a subsonic load like the 300 Blackout does with heavy bullets. It is designed to be subsonic in a mil spec 14½" barrel- it is. Im thinking that that will allow the bullet to reach the gas port as the power curve is dropping, and thus hopefully keep the action from cycling. If you’re interested in using reddit for self-promotion check out our Official Spam Policy.It works as advertised within a narrow window. I was thinking along the lines of a 40 or 55 grain bullet with a minimal powder charge of a fast burning powder. Standard-velocity cartridges generate near or slightly supersonic velocities. Other Subreddits you may be interested in: Most standard velocity ammo has a bullet weight of 40 gr (2.6 g). This unfortunately includes reloading components like brass, and projectiles. Prvi Partizan PPU Ammunition 223 Remington 55 Grain Soft Point (20pk). Powder Manufacturer: Powder: Charge: Velocity (FPS) 55. Winchester Subsonic Ammunition 22 Long Rifle (22LR) 40 Grain Subsonic Hollow Point. Due to reddit policies all posts selling, trading, or buying ammunition are forbidden. .223 Remington Subsonic Loads (Hodgdon data) reloading data with 3 loads. then I tried it in my 243 win with a load of 39.5 gr. 3031 many years ago, first in my 308 with 168 grains bullets, the magic load. If you'd like to post reloading equipment for sale, for trade, or a request for something you'd like to buy please put, , or respectively, at the beginning of your title. I have been using imr 3031 in many different cartridges for over 40 years and was always very happy with is performance. R/Reloading discord join us for supplies and helpful conversation: Https://discord.gg/reloading always start loading with the minimum powder charges in the loads illustrated. Posts titled " Help! New Reloader." will have less responses than a post titled like "Questions about crimp for. current data for reloading Accurate and Ramshot powders. powder held against the primer with a tuft of kapok and a 90 grain bullet. Please make sure you title is relevant to the specific question you are asking. The practice of down loading rifle calibers to subsonic velocity levels must. Remember, if you post a picture, make sure to provides some context.
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