I use lee carbide pistol dies exclusively for 357mag/38spcl, 44mag/44spcl, 45acp and 40 smith. I have never had any problems remotely close to miasdaddy's problem. My guess is the batch of brass is bad, oversized chambers or the loads are hot. The other thing I can think of is miasdaddy doesnt have his sizing die set to meet with the shell holder when the ram is all the way up. Or if the brass he has was picked up off the range or from reman ammo if thats the case you never know how bad or how good the brass is unless its new brass or stuff that was factory ammo that you fired.