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3/31/2010 5:33:36 PM EDT
Im wondering is there an approximate # of rounds in which its recommended to change the bcg or barrel or both. Say 10K 30K?
3/31/2010 6:26:37 PM EDT
[#1]
Depends on the barrel and  how fast you are shooting. It also depends on your standards for accuracy. A match grade barrel will not be match grade anymore after about 6-7K rounds, but it will still work fine and should be plenty accurate for plinking. If you are using the rifle for competition though it might not be up to your standards.
3/31/2010 6:28:21 PM EDT
[#2]
That doesnt sound like much fun, I know nothing lasts for ever but 6 to 7k sounds pretty pathetic.
3/31/2010 7:22:26 PM EDT
[#3]
He is talking about match grade. Where the goal is to shoot the smallest groups possible.

For the benchrest crowd, I bet they look for .25 MOA rifles, where a 1 MOA rifle is garbage to them.

For the majority of non-benchrest shooter, a 1 - 1.5 MOA rifle is plenty accurate for plinking, carbine courses, multiguns, etc.

An example is Rainier Arms UltraMatch upper. They guarantee .5 MOA with match ammo. Say after 7k rounds it shoots 1 MOA. The group just doubled and it wouldn't be considered match grade anymore to some people. But it'll still hold it's own against a run of the mill AR.

It's all about perspective...
4/1/2010 5:35:43 AM EDT
[#4]
ok so after about 10K the barrel isnt junk just not as good?
4/1/2010 9:45:37 AM EDT
[#5]
Quoted:
He is talking about match grade. Where the goal is to shoot the smallest groups possible.

For the benchrest crowd, I bet they look for .25 MOA rifles, where a 1 MOA rifle is garbage to them.

For the majority of non-benchrest shooter, a 1 - 1.5 MOA rifle is plenty accurate for plinking, carbine courses, multiguns, etc.

An example is Rainier Arms UltraMatch upper. They guarantee .5 MOA with match ammo. Say after 7k rounds it shoots 1 MOA. The group just doubled and it wouldn't be considered match grade anymore to some people. But it'll still hold it's own against a run of the mill AR.

It's all about perspective...


Yeah, this is what  I meant. If you want your rifle to be  a match grade, benchrest rifle, "worn out" might mean whenever the groups are 1-1.25 MOA. If you just want the rifle for plinking or home defense, this is very acceptable. In that scenario, "worn out" could be 20K rounds.

It mostly depends on your intended use. If you are shooting very fast (full auto or bumpfiring) it will wear out faster though.
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