I've never worried about dry firing any firearm. I have always heard that bit about rimfires being more prone to problems from dry firing and I seached the all knowing internet about it one day. I found an article, can't remember where, but they took two identical rimfires and fired one 25,000 times. The other one they dry fired 25,000 times. The wear/damage on the bolt and firing pin was the same. Granted, it is a very general test with only one type of gun but that really says that dry firing is no worse than firing. Your results may vary but I try to dry fire my rifles a lot and I think it makes me a better shot. Snap-caps are a waste of money IMO.