Recently, I decided to shoot a couple of my handguns. Selected a S&W model 17 revolver in .22 caliber. found some old Remington Yellow Jacket hollow point bullets and put up a target against a solid railroad tie corner post. The revolver would fire about four out of six times and I did this a couple of times. Selected a an box of Winchester long rifle bullets and the results were the same. Could old ammo just wear out from old age? The brass was dented by the hammer/firing pin mechanism. I do not have any "new" .22 ammo but will try to acquire a box and do some more testing. Any comments, advice, suggestions about my situation?