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AR15.COM
10/6/2006 5:20:43 AM EDT
How do u know when to replace the barrel? When all the rifling is gone!
10/6/2006 11:57:10 AM EDT
[#1]
You need to start thinking about replacing the barrel when:

You've neglected the bore and it's rusted or pitted badly.

The gun no longer shoots accurately.

The barrel has a defect like bulges, rings, cracks, or is otherwise defective.

Modern pistol barrels usually last a life time, and very seldom need replacing.

Automatic barrels can often be replaced by the owner, AS LONG as the replacement is sold as a "drop-in" barrel, and even then they often need some fitting.

Revolver barrels are replaced ONLY by the factory or a QUALIFIED pistolsmith.
Revolver barrels are hand fitted items, and require extensive custom fitting.  
These are NEVER "drop-in" and attempting to do it without the extensive tooling is a fast way of ruining the frame.
10/7/2006 3:21:00 AM EDT
[#2]
thanks helped alot