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Cycler
03-11-2012, 06:25 PM
The bolt face doesn't go right up against the barrel. Therefore you have to take into account what normal case protrusion is, or you will be slightly short of legal by about .100" or so.

Kevin

That's only if you are measuring a barrel that's not installed in a rifle or shotgun. Then, you do have to make allowences for the fact there is a gap between the very end of the chamber and the breech/bolt face. If the barrel has been installed, that gap is taken into account already.
Aircraftmech76
03-11-2012, 06:32 PM
One simple way to check barrel length is to make up a dowel rod marked at the exact minimum length (16" for a rifle, 18' for a shotgun) and drop it down the barrel until it hits the closed bolt. If the mark is inside the muzzle, you are legal.


This is the post I was referring to in which the poster states to use this method on an installed barrel with the bolt closed.

Kevin
Cycler
03-11-2012, 07:14 PM
Then I don't see your objection. If the barrel is installed, the dowel method gives the correct barrel length by the ATF definition.
Aircraftmech76
03-11-2012, 07:25 PM
If you pull that barrel, and it's 15.9" in length, are you willing to take it to your ATF office and say you've installed it without a tax stamp for a SBR? This is the point I'm making here. The barrel length is not measured from the muzzle to the bolt face, it's measure from the muzzle to a closed breach face (meaning the very beginning of the barrel).

Kevin
Aircraftmech76
03-11-2012, 07:26 PM
You guys need to be careful unless you want to take showers with soap on a rope...

If you think the ATF won't put you there, you shouldn't be shortening barrels.

Kevin
ellobo
03-11-2012, 07:37 PM
Aircraftmechanic has a point. Never trust some government beaurocrat to interpret the rules in your favor but the governments or his personal desire to make it tough on a gunowner. They know it will take a fortune for you to get a ruling reversed. Lawyers ain't cheap.

El Lobo.
Blue Avenger
03-11-2012, 08:20 PM
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/s320x320/422137_312720632123415_100001564432992_883231_5024 5746_n.jpg
big honkin jeep
03-12-2012, 10:42 AM
15 3/2" it is then. ;D
Aircraftmech76
03-12-2012, 03:24 PM
Well played sir!

Kevin ;D
ellobo
03-12-2012, 05:22 PM
[quote=Aircraftmech76 ]
Well played sir!


Indeed.

El Lobo