question?

stanstan New MemberPosts: 10 New Member
going from a 5inch barrel to a 3inch how much velocity do you lose,is there a set standard that applies to all guns?

Replies

  • NNNN Senior Member Posts: 23,987 Senior Member
    Welcome Stan look at this site.
    http://www.ballisticsbytheinch.com/38special.html
    A Veteran is someone that served in the Military, it does not matter where they served.
  • LinefinderLinefinder Moderator Posts: 4,688 Senior Member
    No.

    Too many variables, not the least of which is the burn rate of the particular powder. It'll vary from powder to powder and can greatly affect muzzle velocity. In rifles, a good guesstimate is 35-50 fps per inch, but with short handgun barrels, there is no realistic estimate.

    Mike
    "Walking away seems to be a lost art form."
    N454casull
  • stanstan New Member Posts: 10 New Member
    thanks,guys
  • N320AWN320AW Senior Member Posts: 648 Senior Member
    Linefinder wrote: »
    No.

    Too many variables, not the least of which is the burn rate of the particular powder. It'll vary from powder to powder and can greatly affect muzzle velocity. In rifles, a good guesstimate is 35-50 fps per inch, but with short handgun barrels, there is no realistic estimate.

    Mike

    Yep. Cutting off an inch of barrel from a 26 incher and a 4 incher will give much different velocity decrease.
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