Dry firing IS safe, IF you are using either snap caps or a spent cartridge case to give the firing pin something to fall on. I do this, (using snap caps for a 7.62 and a cartridge case for a 6.5X284) often, but I replace a case after 3 hits on the spent primer. I find that it is one of the greatest aids in discplining myself to concentration on trigger control, follow through and above all else FOCUS on the crosshairs, (or front post), as the shot breaks. It is an added benefit to those who cannot get to range as often as one likes, while; given us the chance to perform, at home, all the functions necessary for excellence in marksmanship. When considering the obvious number of shots that can be done in this manner, a person might become a SHOOTER after several months of such training.