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Velocity/Energy Loss???

justright58justright58 Member Posts: 333 ✭✭✭
edited August 2008 in Ask the Experts
Good Day Forum,
Does a ported barrel and slide on a semi automatic pistol cause substantial velocity and/or energy loss? I'm wanting a Glock 20 in 10mm and would like to know thoughts on the compensated version versus the standard barrel.
Thanks to all replies and as ever, a Special Thanks to all Vets and military folks.
John[8D]

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    260260 Member Posts: 1,134
    edited November -1
    no. nothing to worry about.
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    beantownshootahbeantownshootah Member Posts: 12,776 ✭✭✭
    edited November -1
    quote:Originally posted by justright58
    Good Day Forum,
    Does a ported barrel and slide on a semi automatic pistol cause substantial velocity and/or energy loss? I'm wanting a Glock 20 in 10mm and would like to know thoughts on the compensated version versus the standard barrel.
    Thanks to all replies and as ever, a Special Thanks to all Vets and military folks.
    John[8D]


    By bleeding off a tiny fraction of hot gas before the bullet leaves the muzzle, porting causes minimal loss in velocity (and hence energy). In practice, the effect is so minimal you'd probably never notice it.

    Realistic downsides to a ported gun include increased muzzle FLASH (not good in the dark), increased perceived REPORT (ie loudness), and an increased propensity to ignite flammable objects close to the gun muzzle (eg your clothes!).

    For this reason, many knowledgable individuals advise against ported guns for defensive use. Sporting use is a different matter.
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