Firearms Talk banner

1 - 8 of 8 Posts

·
Registered
Joined
·
3,035 Posts
Discussion Starter #1
What is the best/proper way to measure the length of a rifle barrel that is already attached to the receiver?

Is the chamber length considered part of the barrel length for measuring?

Thanks in advance for any help provided.
 

·
Registered
Joined
·
5,254 Posts
Put the bolt in the forward position. But a cleaning rod in the barrel until it touches the bolt. Mark with a pen. Now measure the rod. The Feds will drop a pre cut rod into the barrel. If it does not stick out your barrel is too short.
 

·
Registered
Joined
·
3,035 Posts
Discussion Starter #3
Put the bolt in the forward position. But a cleaning rod in the barrel until it touches the bolt. Mark with a pen. Now measure the rod. The Feds will drop a pre cut rod into the barrel. If it does not stick out your barrel is too short.
Thank you!
 

·
Banned
Joined
·
0 Posts
Rick is exactly correct and that is the most accurate way of determining barrel length. many people will actually go an extra half to one inch over tp err on the side of it being legal.
 

·
Premium Member
Joined
·
20,098 Posts
That measurement is only what is non removable on the barrel. So if you have a compensator or flash hider and its not permanently attached as in welded or pinned it doesnt count on length.
 

·
Administrator
Joined
·
26,310 Posts
Above is correct for rifles, shotguns and pistols, with the exception of revolvers.

Weapons should be cocked, so firing pin does not protrude, rod should be close to bore diameter, so you are not measuring an angled line thru the barrel.

With revolvers, open the cylinder, place a flat object across the forcing cone, THEN insert rod, mark, withdraw and measure.
 

·
Premium Member
Joined
·
62 Posts
Put the bolt in the forward position. But a cleaning rod in the barrel until it touches the bolt. Mark with a pen. Now measure the rod. The Feds will drop a pre cut rod into the barrel. If it does not stick out your barrel is too short.
Maybe I'm thinking of this wrong somehow but if it's a pre-measured rod at the minimum legal length, and it sticks out then the barrel must be too short right?
 

·
Banned
Joined
·
3,611 Posts
That's what Rick meant...
 
1 - 8 of 8 Posts
Top