Pardon me if someone else has coverd this, but a question came up in conversation about pressures not stated, in this instance ith PPU, or Prvi Partizan, and I did not find ammo secs other than velocity and energy charts.
Then I niticed this:
GROM - THUNDER
Attentively analyzing your needs and wishes, we designed a new bullet. Type, made of copper alloy in mayor part and with a small lead core.
The research confirmed our efforts to offer you a high perfomance bullet type with an optimum balance of characteristics when penetrating: controlled and reliable expansion, deep penetration, maximum weight retention, good accuracy and satisfying energy.
GROM ammunition type is intended for big game hunting. For more information about this caliber go to Rifle Ammunition Search page.
GROM Rifle Bullets
Ctg Art. Caliber Dia. (inch) Type Bullet Weight (g) Bullet Weight (gr)
B-105 7 mm .284 Grom 10.2 158
B-323 30 .308 Grom 11.0 170
B-321 8 mm .322 Grom 12.0 185