Are 38 S&W vs 38 Special Ammo interchangeable?

The .38 Special and the .38 Smith and Wesson are not interchangeable. .38 Smith and Wesson is larger in diameter than the .38 Special.

38 S&W (The Other .38)

38 Special vs .38 Super - Caliber Comparison

DrakeGmbH (u/DrakeGmbH) - Reddit

Why is 38 special ammo bigger than 38 ammo? - Quora

Thirty Eights - American Handgunner

Cartridge of the Century: A History of the 38 Special

38 Spl is NPBReally? Seems contradictory.. - Indians For Guns

Fightin' Iron: The Terrier An Official Journal Of The NRA

TFB Round Table: Anything Special About 38 Smith & Wesson?The Firearm Blog

38 Special vs 9mm - Difference and Comparison

38 S&W vs. 38 Special

38 S&W (The Other .38)

Is it dangerous to shoot .38 Special rounds (Not +P) in a .38 S&W revolver like the Colt Police Positive? - Quora