Put a new scope on a rifle and proceeded to bore sight at 40 yards. Was using a box of cheap factory ammo I have laying around to get on paper. First shot was good, actually about 2 inches off dead center. The second round pounded my shoulder and twisted my wrist. The target hole was above and to the right of the first shot by about 6 inches. Bolt handle went up into the cock position however the case was stuck in the chamber. Put a shooting glove over the handle and gave a couple of sharp hits with a small mallet to get the case loose. I will check out the barrel and bolt tomorrow to see if there was any damage. I posted the photo to show what happens to a case head when a round goes over pressure. For newbies please be advised that this round was WAY too much over pressure! When working up a load, If you see a slight ejector, extractor mark or the primer just starts to flatten, back it down some. Once again I was using factory ammo not my handloads.
