This is our first go around with reloading and we are in the process of prepping a bunch of 45 Auto's. We were checking the case length and ran into the length on everyone we checked being smaller than the Lyman manual states. The manual say .898 from end-to-end. When we mic'd them we had .893, .890 and .886.
All of these cases have been fired only once. They are Remington and a French (I think) company called Aquila
So my question is what is the allowable difference in length? I would think the cases would be longer if they were stretched from firing not shorter. We haven't trimmed since we were checking length just to see what we found compared to the book?
How short is to short?