The bullets are 1.575 long!ĬOAL 2.128 approx (slight variances in length of 5-10 thousandths or so)ĩ.0 817, 910, 844 SD 47.8 (not sure what happened here)ġ0.9 and 11.2 wouldn’t chamber due to compression of loadīCA 7.62 x 39 16” Govt profile upper Omega canġ2. throughout a range of bullet weights and is perfect for subsonic loads. 308 bullet sizing die, they chambered fine until filled with 10.9 gr and up of A1680. Second, once the bullets were resized to 0.3080, using a Lee. Please let me know if you've tried anything (I've read semi-crazy stuff about folks seating 150gr pills backwards).Follow Up on Hornady 255 gr Sub-X bullets in 300 Blkįirst, the original pulled bullet (from Hornady 255 gr Sub-X 7.62 x 39) at 0.3105 stretched the Starline once fired brassĪnd would not chamber completely with the exception of one round with 9.0 gr A1680 and recorded 828 fps. My guess based on Gavin's work is that it would be a roughly a grain or so above the starting load for a 300 BLK sub with the above powders and a similar COAL. I'm hoping to use the CFE BLK or A1680 over the 220gr and hoping that someone might be able to help me out with a quickload or Gordon's calculation to give me a starting point. I'd rather save my H110 for something else since I'm lower on it.

Thats obviously not the case with the subsonic. Gavin seemed successful with H110 and the Berry's 220gr bullets. 300 Blackout and 7.62×39 because the differences between them are so small with most loads. 312 (haven't used this for anything yet). CFE BLK, H110, A1680, Trailboss (a good handful of other powders too, but these have been what I've used in 300 BLK before). New Starline x39 brass and some once fired brass For context, I have the following components to work with right now: I've done some research, and the best video/data I've come across has been Gavin's info on Ultimate Reloader. If you’re interested in using reddit for self-promotion check out our Official Spam Policy.įirst of all, yes I know about 300 BLK and I load that subsonic as well - but I want to load some of my own sub x39 for a Zastava m92 and an M70 with a Dead Air Wolverine. Other Subreddits you may be interested in: This unfortunately includes reloading components like brass, and projectiles. I'm using Hornady 208gr Amax and IMR 4227. Due to reddit policies all posts selling, trading, or buying ammunition are forbidden. Subsonic 7.62x39 project 7511 Views 6 Replies 5 Participants Last post by Wahoo95, Flashpoint Discussion Starter (Edited) I'm attempting to develop some subsonic loads for 7.62x39. 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. R/Reloading discord join us for supplies and helpful conversation: Https://discord.gg/reloading I am thinking of trying a SLOOOW burning powder. The velocity was fine but the action would not cycle completely.

Posts titled ' Help! New Reloader.' will have less responses than a post titled like 'Questions about crimp for. I tried Trailboss in 7.62x39 with 124gr FMJs. The new Brown Bear 7.62x39 subsonic ammunition offering shares the same great features of previous Brown Bear offerings, including a lacquered steel case. 17 grains to 18 grains of Winchester 748 powder. Please make sure you title is relevant to the specific question you are asking. To make Subsonic 7.62x39 I start with Winchester brass and Winchester large rifle primers. Remember, if you post a picture, make sure to provides some context.

7.62 x39 subsonic load