by deerhunter4life » Fri Dec 21, 2007 3:28 pm
You'd be suprised youngbuck88, I know benchrest shooters who throw out there barrels after 800-1000 rounds, but they are shooting 1/2 MOA and smaller 5 shot groups at 100 yards, and will notice the slightest difference in accuracy. I would say 2000 rounds and you would start to notice a difference in accuracy, not knowing at what speed these bullets are moving, could be more or less. A bullet moving in the area of 3400-3500 fps can burn a barrel out pretty quickly. With a hunting gun it wouldn't make a huge difference, so what it goes from shooting a 3/4" group at 100 yards to 1.5" not a huge deal. Either way most hunters never burn out a barrel unless they spend a lot of time at the shooting range. If you are shooting a semi auto as fast as you can though, the barrel life will be shortened even more. I know a guy who burned out the barrel on a mini 14 in .223 in something like 500-600 rounds because eveytime they shot it it sounded like a machine gun, emptying a 40 round clip in 10 seconds over and over again.