Skip to content
Lindcott Armory

Cartridge comparison

.38 Super vs 9mm Largo

.38 Super and 9mm Largo are both in the reference; see the full spec comparison below.

Side by side

.38 Super9mm Largo
TypePistolPistol
Introduced19291903
Bullet diameter0.3559″0.3551″
Case length0.9″0.9055″
Max pressure36,500 psi34,084 psi
Recoil3–5 ft·lb4–6.5 ft·lb
Effective range50 yd50 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 .38 Super and 9mm Largo trajectories with real loads in Ballistic Compare