skb2706

I shoot prairie dogs all the time with a 22-250 and several other guns. Yes the barrel can get very hot and if you shoot it to the point of being too hot to touchit will quickly degrade the barrel to the point of uselessness. There are many chamberings that have the potential to ruin a barrel. Whether it 'warps the barrel or not it, I have no clue but itspeeds up the wear of the rifling.
My son and I used up the original barrel on his 22-250 (ruined makes it sound like we did it in one day) in two seasons of pds. Now we take more guns and switch often. You need to understand that shootin pds isn't like anything else. Think over abundance of reactive targets at varying distances that can be shot at will for lng periods of time....non-stop.
You can use the analogy of tires on your car, the harder you drive it, the more burn outs you do, the quicker you will be buying new tires. Barrels and tires are both common wear items.