Recently I received a Dan Wesson 15-2 VH with an 8" barrel. When I shoot it at the range, it spits stuff back at me. I have a number of other revolvers, but don't experience this with any of them but the Dan Wesson. After doing research, I've found that the gap between the cylinder and the forcing cone should be .006. My gap appears to be .015. Since I don't have the special tool that I need, is this safe to shoot? Could I damage the weapon?