Great shot what ammo did you use
Does the back side look Just like that or is it larger? With the open tip I would imagine if it was super sonic the back side was much larger
Can’t see the pic but congrats.
Sticking with some 168gr Noslers I cooked up. They hit a little harder than 7.62x39
Consistent 1980’s out of my Ruger American but have broken the 2000fps mark using a different load. A CCI #41 primer touching off 18gr of Lil’ gun got me 2010-2030 last year. I opened up the primer holes a good bit and gave them all a generous crimp.What's the FPS?
The box of Remington I am shooting states they are 2100 fps. Sounds like you have found a good load.
Lot of trial and error and site searching. Like I said, the challenge is the case size, or lack there of. The pressures aren’t exactly a worry with that case. Just pack that joker full, lol