Thread: Now here's a question......

To keep track of how many loadings each case has had, I've seen some people cut a small tally mark on the head stamp of the case each time they reload it. Do we reckon this is going to affect headspacing if used on full length sized cases? I've heard that back in the day, those target shooting with 303s would sneakily clip the rims of the round with pliers just enough to make a deformation that would tighten up the case against the bolt when close and effectively cause a tighter fit in the chamber, this was allegedly done for accuracys sake. Makes me wonder whether small notches on the case head of a rimless cartridge would also effect how it chambers?