.380 vs .38 Special: Which Pocket Pistol Round Packs More Power?
.380 ACP and .38 Special are two distinct cartridges: the first is a rimless, semi-auto round developed by John Browning; the second is a rimmed revolver cartridge created by Smith & Wesson. They share a .355–.357-inch bullet diameter, but cases, pressures, and platforms differ.
Folks grab the smaller “380” for micro-pistols like the Ruger LCP, while the “38” lives in snub-nose revolvers such as the S&W J-Frame. Because both fit pockets and sound alike, buyers often assume interchangeability—until they try loading .38 rounds into a Glock 42 and nothing chambers.
Key Differences
.380 runs 17,000–21,000 psi, propelling a 90-grain slug at 1,000 fps from a 3.5-inch barrel. .38 Special peaks at 17,000–20,000 psi, but with 110–158-grain bullets at 800–950 fps. .380 holds 6–8 rounds in a flush mag; .38 fits 5–6 in a cylinder. .380 pistols are lighter; .38 revolvers are simpler and ammo-diverse.
Which One Should You Choose?
Pick .380 for deep concealment and higher capacity—ideal when clothing is thin. Choose .38 Special if you prefer point-and-pull reliability and heavier bullets that penetrate barriers. Both demand practice; neither is a magic wand.
Can a .38 Special revolver shoot .380?
No. Rimmed .38 cases won’t chamber in semi-auto .380 pistols, and rimless .380 rounds will not align in a revolver’s cylinder without moon clips.
Does .380 recoil less?
In comparable-weight guns, yes—lighter bullets and lower momentum make .380 feel snappier but milder on the wrist than a 158-grain .38 from a 12-ounce revolver.
Which round is cheaper to train with?
Currently, .380 costs 10–20% more per box; surplus .38 wadcutters are plentiful and often cheaper for high-round practice sessions.