Originally Posted by
sauer06
Guys, I am preparing a ton of 243 and 308 once fired brass for reloading. I am doing a full length resizing, my question is the case length. The case length on most of this brass is within 10.000 of an inch of each other. Now I know that it is best to have every case the exact length but how important is it really? I have been told that if you have a cannalure they must be all the same length but what if the bullet does not have a cannalure? What if I decide not to crimp or use a roll crimp? I have over 1000 pieces of brass and I dread having to trim all these cases by hand.
Have at it guys I am all ears.
Thx for all the help.

.......Honestly, Doug, I would trim them all to the trim-to-length spec. I'm kinda anal about some of the "little" things, and I'm sure some will disagree with me. You need a base standard to start with. I then pick a "lot" size, maybe 25 or 30 casings, and shoot them all the same number of times until they're scrap. Then discard the entire lot. If accuracy and precision are your goal, uniformity is the key.....
.......As far as crimping goes, I see no need to crimp any bullet in a 243 or 308 case. The only crimping I ever do is on pistol rounds or heavy recoiling big boys like my .338 WinMag or 45/70....