Today I cleaned, brushed, trimmed etc 70 brass cases for reloading.
Having read recent threads about weight of cases I decided to weigh them all to see what the difference in weight was between each.
All 70 cases were from federal factory ammo that has been fired once and were trimmed using my electric drill and trimmer to the same length.
The cases weigh at one extreme 10.98g and at the other extreme 11.36g
The average is about the 11.21 mark
What is an acceptable case weight difference to use when trying out loads? Is it 1g or 0.1g or 0.01g or does it not really matter at these weights?