I have a 308 remingtion range master target that has had
over 20,000 rds through it and it will still shoot 1/2 MOA.
Remingtion barreled it with a hart stainless and even though
it does have some throat erosion it doesent seam to hurt accurace.
This rifle has shot many rapid fire events ( 10 to 20 rounds in 1 or 2
min and has been very hot (to hot to touch the barrel), But it has been
cleaned very well after each match(50 to 100 rounds).
Barrel makers will tell you to expect 1200 to 1500 for chrome moly and
2000 to 2500 for stainless before any loss of accurace, But a lot depends
on velocity, powder used and how well / often you clean.
Some times an adjustment in overall cartrige length can extend barrel
I have dealt with many rifles that appeared to be shot out and after about
3 to 4 hours of cleaning the bore they were "ALLMOST" as good as new.
Specweldtom had a 308 match rifle that had been set back and re'chamberd
because of barrel ware and then shot another 15,000 or 20,000 rounds
and realy liked some home made bullets that were .309 dia.
So as Lightvarmint said shoot an enjoy ,Or as our friends down under say
"No Worries Mate" .
J E CUSTOM