Quote Originally Posted by Daan Kemp View Post
Please enlighten me, I would dearly like to know.
The .30 Carbine round is a rifle cartridge and operates at higher pressures than the handgun rounds you mentioned. The pressure specs are nearly double that of the 32 H&R and roughly 15% higher than the 357 magnum. Out of the shorter barrel (rather than the full 18" Carbine barrel) a lot of the energy is wasted as the bullet exits the muzzle, and results in the flash. At least, that's what I believe causes it. - Bob