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.

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

Calibre confusion - Sporting Shooters' Association of Australia (SSAA)

38 Special vs. .40 S&W: Caliber Comparison

Is it dangerous to shoot .38 Special rounds (Not +P) in a .38 S&W

Thirty Eights - American Handgunner

357 Magnum vs. .38 Special

357 Magnum vs. .38 Special

38 Special vs 9mm - Difference and Comparison

Best .38 Special & .357 Magnum Ammo 2024: Self-Defense, Hunting & Range - Pew Pew Tactical

Can I make a 38-55 casing from a 38 special casing to use in a 38 S&W? - Quora

Reloading The .38 S&W/.38 - American Handgunner