does the rubber flake off and get in the firing pin hole??? I've not used rubber cement before
speaking of dry fire, the usmc has a bunch of kids (mostly kids, mostly never shot before, definitely not at five hundred yards) dry fire a bunch for two weeks, then take a "practice" qualification course, then the real thing..... 200, 300 and 500 yd shots (points must stay above 80% or 190/250). totally new and ignorant to guns 17-19 boys hitting stuff a quarter of a mile away with iron sights, firing light bullets that aren't loaded match grade, out of weapons that are hand-me-downs and not accurized bbq guns- ALL DUE TO DRY FIRE, IT WORKS AND HAS FOR YEARS
if that's possible (it is, look it up) then hitting cans with a pistol at 25yds is really easy, rediculous easy. with rifles you need to worry about breathe control more than trigger control though- you gotta control your heart-rate like a yoga mystic.
anyone heard about the somalian victory in .. IPSC maybe? one year that nation's team won and it mostly just dry-fired everyday to train for that season.