Originally Posted by stev32k
I'm reloading 9mm and using the Hornady seating and crimping die. The Hornady manual says "use little or no crimp". If I don't use any crimp the bullet is loose in the case. So I tried turning the crimp down 1/2 turn after it made contact with the case. That's where my problem is - is 1/2 turn a little crimp or a lot? Maybe it should be 1/4 or 1/8 or 1 full turn for a "little crimp".
When reloading semi-auto ammo, ferget the term "crimp". You will be using a taper crimp die just to "deflare" the case mouth. All you need is to remove any flare in the case mouth so chambering is easy. Use your gun's barrel (removed) as a gauge. If the bullet is loose in the case prior to "deflaring", there is a problem elsewhere (sizing/expanding/bullet dia.). Again, separate operations; seat, crimp.