Seating die for lead bullets

First topic message reminder :

A problem I have always had is when I seat lead bullets in my Dillon 650 I always get a small ring of lead at the case mouth when the bullet is fully seated to the proper depth.  This ring of lead happens before I crimp .   I use a Redding seating die with a SWC stem but I have tried RCBS seating die along with a Lee and have had the same results, I have to run my thumb nail around the case mouth to remove the ring of lead after the crimp station. Along with having to do this I also get a huge amount of lead jammed up in the seating die from this ring of lead coming off and getting stuck between the die body and the seating stem itself.  The problem from what I can surmise is, even though I bell the case mouth sufficiently in the powder drop station the seating die body starts to remove that bell and squeezes the case mouth down to small a diameter for lead bullets.  When I try to back out the seating die so the taper doesn't squeeze down the bell of the case mouth so much to cause the lead ring then I don't have sufficient length on the bullet stem to seat the bullet to the proper depth.   Happens with all makes of brass, I mostly shoot Federal brass but I have tried Star-Line and Winchester brass with similar results so it's not the brass thickness that's causing this problem. 

Has anyone else had this problem and if so how did you cure it ? I am now trying a seating die body from a 45/70 die set with the 45 ACP SWC seating stem in it.  This has cured the ring of lead when seating but this seems like a drastic measure to take to get clean ammo and I question if the bullets are being seated straight with this method.

Any suggestions ?

Virgil

Very sad to hear, and my condolences to his family and friends.

Thank you for informing us.