Its a French 1873 bored out for 455 webley 45 auto.picked up a mold,I have only ever reloaded using 32 and 38 rf kits.I picked up a Lee loader for 45 auto.Im going to use pyrodex P ,do I need to crimp the casings?I just need to make sure there's no airspace left in the casing,seat the bullet right on top?Let the wife shoot it 1st,any other hints?just kidding about the wife.Dave