I was digging around and found a box of moly coated 40-155-RNF bullets and I have some CFE pistol I don’t have much experience with pistol so I watched a few videos but when I get the seating die set up in noticed my OAL varies by .005 I wasn’t sure if this is a problem and I need to adjust the die every time then go back and crimp or what is better or ok I’m doing this on a single stage press