I have trimmers for most calibers the revolver isn't
fussy about oa length the autos are but I just measure oal
on every 30 to 40 rounds and make sure oal is on the short side
never had any problems except one time I loaded My Sig .357
with round nose 115 gr bullets well not thinking they would be longer than the flat nose 124 gr I did they just stuck in the magazine I repressed them and were fine after
The .308's and .223 's I use a case gauge on everyone