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ojr
Senior MemberPosts: 1,122 Senior Member
Barrel Length

I always thought barrel length was measured from closed bolt face to the muzzle
However seems some manufactures have a different way of measuring.
I'll elaborate after a reply or two but what is your expectation of Barrel length.
However seems some manufactures have a different way of measuring.
I'll elaborate after a reply or two but what is your expectation of Barrel length.
The flight was uneventful, which is what one wants when one is transporting an Elephant.
Reuters, Dec 2020.
Reuters, Dec 2020.
Replies
Reuters, Dec 2020.
Modern change does introduce the question of what is the muzzle? I think the crown where rifling terminates, but threaded barrels, brakes etc., maybe convolute the answer???
Mike
N454casull
you need to take into account, someone may break out a leatherman and use that to measure, or use their hand or whatever they have handy at the time.
Also, someone may think they know how to measure where in the real world, and they and give a number.
then there is "close enough"
then you have oops. Ive does it on things and im sure im not alone. its why i do the "measure 2x, cut once"
so what you may "expect" to read/see may not be so and will depend on how the person measured - if you can call it that - has done it.
also, you have no idea on what mods have been done. maybe have the barrel shortened? or maybe a flash hider? At one time some AR carbines came out with short barrels so the OEM ? welded on some long flash hiders to make them complaint. Even though the actual rifled barrel was short, with the welded on flash hider, it became complaint.
- Don Burt
Highlights of LEGAL BRIEF Discussion of Barrel Length and Firearm Overall Length
"The ATF procedure to measure the length of a barrel is to measure from the closed bolt or breech face to the furthest end of the barrel or permanently attached muzzle device. ATF considers a muzzle device that has been permanently attached to be part of the barrel and therefore counts towards the length."
Some manufacturers I've noticed will give a barrel length, and actual measured length is mostly longer, especially on minimum legal length barrels. Not by much, but they're longer. Better safe than sorry, I guess.
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