Got to wondering about the whys of a barrel ceasing to perform adequately and in my research, it sounds like the major factor is throat erosion. Understandable. However, if thats the case, why don't more shooters reset and rechamber a barrel a half inch forward and keep on running it?
Barrel life factors
- Thread starter rimfiremac
- Start date
Alot of people actually do set barrels back, one issue is that you could only do it so much due to the profile of the barrel (not enough shank). Another more complex issue is the quality of the steel beyond the throat after having fire a few thousand rounds through the barrel.
It's can be done but often doesn't deliver the level of accuracy or performance for serious competitive shooting.
Throat erosion is the major issue but remember that erosion affects the rest of the barrel also:
http://www.norma.cc/en/Ammunition-Academy/Barrel-wear/
Alex
Throat erosion is the major issue but remember that erosion affects the rest of the barrel also:
http://www.norma.cc/en/Ammunition-Academy/Barrel-wear/
Alex
I've set them back, the barrels seem to last about half the number of shots the second time.
The costs of rethreading, rechambering and perhaps rebedding what amounts to half a barrel are the same as doing the same work on a new one.
If I had my own lathe and knew how to use it, it would be different.
The costs of rethreading, rechambering and perhaps rebedding what amounts to half a barrel are the same as doing the same work on a new one.
If I had my own lathe and knew how to use it, it would be different.
paperslayer
Regular
- Location
- Chilliwack
hell yes. just let them get to the point where they are too far gone.
I use McLennan barrels that have a 4" shank forward of the chamber. This allows a new chamber/throat to be cut after a few thousand rounds.
Sometimes this feature allows a used match barrel to be re-used in another less demanding application.
Sometimes this feature allows a used match barrel to be re-used in another less demanding application.
Many competitive shooters set their barrels back. I'm one of them. On a .308, the general rule that some follow is to set the barrel back after about 2,000 rounds.
In fact, when I started competitive shooting, my first barrels were "hand-me-downs" that were all set back in this way. It works.
In fact, when I started competitive shooting, my first barrels were "hand-me-downs" that were all set back in this way. It works.
