Just started reloading pistol ammo. Am using a Lee 4 stage turret press but--since new to reloading am doing a single stage at a time and hand weighing and loading each charge. Am measuring the various dimensions frequently and notice a 1 to 2 thousands variance coming out of the bullet seating die---prior to going to the factory crimp die. I.E. if set at .980 in might get a .979 or .982 etc. Questions, is this normal to get a small variation? Is it ok to be a few thousands over the recommended COAL? thanks for input!!!! Note for the published load I was using the COL was listed as .980.