What do people consider is an acceptable case length difference in any batch of cases...? (Ie; 0.001"...0.005"....0.0005"...?)
And...
How far below listed trim length is acceptable/safe to trim to.?
The reason i ask is...
I had a new batch of cases where quite a number of them were well below listed trim to length (a good 15-20 or more were .010" under, & the worst few were .015" under).
They have been fired & FL sized to get some length back in them, but around 8/50 or so cases are still .004" under listed trim length, & the longest are now .005" over.