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Lindcott Armory

Cartridge comparison

.25 NAA vs .32 ACP

.25 NAA and .32 ACP are both in the reference; see the full spec comparison below.

Side by side

.25 NAA.32 ACP
TypePistolPistol
Introduced20021899
Bullet diameter0.251″0.3125″
Case length0.7449″0.6799″
Max pressure23,000 psi20,500 psi
Recoil1.5–3 ft·lb1.5–2.5 ft·lb
Effective range50 yd25 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 .25 NAA and .32 ACP trajectories with real loads in Ballistic Compare