Thanks for everyones replies. I don' t think my seating die is causing the problem. The reason I say this is because I measured between the reload and the factory shell, and the dimensions of the neck and shoulder were exact. So I don' t think it is that.

westbronco,
can I check the shoulder length w/ a .38 special case. That is the only other pistol case I have? will it work the same.

Thanks.

I measured the differences between the reload and the factory and they were almost identcal. The only place they differed was by the " shiny" part. (where the pen is pointing). The reload was .003" bigger. Would that small amount make a difference?