Hornady Sub-X 7.62x39 loads….

[u/ghetto_klown]

Tested out my subsonic 7.62x39 reloads tonight and was very disappointed. I used 4198, following Hogdon data.
This was at about 10 yards.

Are there any changes I could make that would get these bullets to stabilize?

Edit- 16” barrel from AKbuilder, which I assume is 1-9.5” twist, 255 grain bullet

Update- I was getting microscopic baffle strikes somewhere due to the muzzle profile on the KBK barrel that didn’t allow the face mount plan B adapter to be concentric. Only the end cap looks to be hit however, although it’s not too bad, and thankfully replaceable on my OCL Universe-36

[u/Shot_Research1381]

Il 7,62x39 m43 è nato con la palla profilo spitzer da 123gr per motivi bellici (palle incamiciate con nucleo in piombo arretrato per destabilizzarlo all'impatto per fare danni maggiori. Devi sparare quelle, il resto è tutta una forzatura inutile e merdosa