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Lindcott Armory

Cartridge comparison

12.7x108mm Soviet vs .50 BMG

12.7x108mm Soviet and .50 BMG are both in the reference; see the full spec comparison below.

Side by side

12.7x108mm Soviet.50 BMG
TypeRifleRifle
Introduced19341921
Bullet diameter0.511″0.511″
Case length4.252″3.9098″
Max pressure52,000 psi55,000 psi
Recoil80–110 ft·lb100–200 ft·lb
Effective range2000 yd2000 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 12.7x108mm Soviet and .50 BMG trajectories with real loads in Ballistic Compare