Originally Posted by Elk Chaser
Another thing that maybe I should've mentioned is that all of my sized brass chambered smoothly prior to seating the bullets. Both my sizing and seating die are set up the same as I bottom them out against the shell holder and then back them off 1/2 turn. Do I need to dis-assemble these rounds and try lowering my sizing die?
If they fit before you seated the bullets and not after then the problem is most likely the seating die is contacting the case and deforming it slightly. The sizing die is probably ok.
Yes, you need to pull the bullets, dump th powder and resize the brass.
Here is a tip to set the seating die depth so you will never have this problem again.
1: put the seating die in the press but leave it up.
2: put a sized case in the shell holder and extend the ram upward to its full travel.
3: while the ram with the case is fully up, start screwing your seating die down until you feel it contact the case.
4: then back the die off (up) 1/8th to 1/4 turn and lock the nut.
This should clear up your problem.