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Lindcott Armory

Cartridge comparison

.56-50 Spencer vs .56-56 Spencer

.56-50 Spencer and .56-56 Spencer are both in the reference; see the full spec comparison below.

Side by side

.56-50 Spencer.56-56 Spencer
TypeRimfireRifle
Introduced18601860
Bullet diameter0.512″0.55″
Case length1.1559″0.8752″
Max pressure18,000 psi14,000 psi
Recoil10–16 ft·lb10–16 ft·lb
Effective range200 yd300 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 .56-50 Spencer and .56-56 Spencer trajectories with real loads in Ballistic Compare