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Lindcott Armory

Cartridge comparison

.300 HAM'R vs 7.62x39mm Soviet

.300 HAM'R and 7.62x39mm Soviet are both in the reference; see the full spec comparison below.

Side by side

.300 HAM'R7.62x39mm Soviet
TypeRifleRifle
Introduced20181943
Bullet diameter0.308″0.3118″
Case length1.6031″1.5236″
Max pressure57,500 psi45,010 psi
Recoil6–9 ft·lb8–12 ft·lb
Effective range300 yd400 yd

Highlighted cells hold the clear edge where both sides have a number. Every figure is a range maximum from the reference; typical loads run lower.

Case profiles, to scale

Drawn to the same scale, so the proportions are true. Physical size varies with your screen.

ToolOverlay .300 HAM'R and 7.62x39mm Soviet trajectories with real loads in Ballistic Compare