You can shoot as many rounds till your barrel melts!! But for accuracy it depends on the barrel, caliber, and speed just to name a few factors that determine accuracy life. Accuracy is the thing that diminishes. People who shoot match with a .243 Winchester notice accuracy diminishing around 2000 rounds. We don't need accuracy like that so you can shoot the gun till your accuracy is below your standards. anyone that tells you that your accuracy is gone with less than 1000rounds has to have a caliber that goes around 4000fps to have around 1000yds. A 30-06 you will shoot for 1000's of rounds and have wonderful acurracy.

Why work when you can hunt???? Heck why work at all!!