Originally Posted By: OldTurtleYou don't indicate what velocities you are loading, but if you are reaching near, or above, 4000 fps, I'm guessing that your throat is pretty well toast...You can spend some bucks on a gunsmith or put those dollars toward a new barrel...All depending how important it is to hit that bottle cap...
Oh yeah, about 4200 with 20 grainers.
The thing with 17's, they have to be precise. They are just no fun if you can't hit the small targets.
Yeah I've shot out several barrels. At this point you're just wasting powder trying to save it, and even if you improve it somewhat it won't last long.