Quote Originally Posted by Robinhood View Post
1.760 Max
1.750 Min
You are OK but the brass is short under 1.750

Don't trim until you get to 1.760. One reason to keep it in the correct range is carbon buildup.

I find that the regular use of a pistol bore brush that closely matches the neck area ID keeps carbon buildup to a minimum. I set my trimmer (Wilson/Sinclair) and just leave it alone (I do periodically check however). Some new cases are a little short but a few firings later they have grown to the point they need a little trim.

In my shooting I don't find case length to be a big accuracy factor. Neck tension, yes, but a few thousandths of difference in case length doesn't seem to contribute all that much effect. Maybe on paper it might but apparently so small that I can still get sub .25 MOA performance even with cases varying in length .005" - .010". I just want the cases short enough so they fit in the chamber and don't expand under firing to the point they create high pressure as the bullet is leaving the case.