Do Ported Barrels Affect Ballistics?...How Much & In What Ways?
This video investigates the impact of ported barrels on firearm ballistics, specifically muzzle velocity. The test compares a ported 3-inch Grizzly revolver against unported 3-inch and 2.5-inch Colt Python revolvers using .357 Magnum and .38 Special +P ammunition. Results indicate that porting can reduce overall velocity, potentially more than a reduction in barrel length alone.











