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Latest comment: 4 years ago1 comment1 person in discussion
I think you will find that the diameter of the muzzle bore of a shot gun affects the spread of the shot.
The length of the barrel affects the the ultimate velocity of the shot.
I.e. A short barrel may not allow all the powder to be burned (not contributing to the highest velocity) while a longer barrel may allow for more complete powder burning ( maxiimizing velocity).
Spread of shot is also called the shot pattern. Shotguns barrels are usually classified in order of greatest pattern spread to smallest pattern spread:
Cylinder bore (Skeet). No difference from chamber to muzzle. 0.00"
Improved Cylinder. Slight restriction from chamber muzzle. 0.01"
Modified 0.02"
Modified Full 0.03"
Full 0.04" 24.192.45.234 (talk) 02:43, 26 November 2021 (UTC)Reply
