I recently purchased a Colt "New Army" Model 1901 DA38, and located some .38 Long Colt lead ball ammo from Black Hills Ammunition. I've only put a couple of rounds through it but noticed that the timing must be a hair off. There was just a tiny sliver of lead deposited on the left side of the "receiving end" end of the barrel. A gunsmith said that he might (or might not) be able to tighten it up a little. Any thoughts on how safe it is to shoot, as is?