Re: Case Life Question?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: George63</div><div class="ubbcode-body">benchrest guys are using their cases well over 20 times - 5 times in 1 day, but that is with minimum sized chambers and light loads
that would be interesting to shoot 1 case to failure and track the POI/accuracy </div></div>
And some even as many as 40 loads, depending on brass mfr.
I threw away my first .308 case for the year last week. Had well over 20 loads on it. I anneal every 5 times for GP brass and after each loading for anything I want to be super accurate.
All my loads are around the 90% of max range so I'm not really stretching my cases all that much. Also, I never F/L size. A Forster Neck Size/Shoulder bump die takes care of all the sizing needed. I also expand as a separate op with a Sinclair Expander (oversize) so each prepped case measures exactly .306" ID in the neck. By only sizing the case a minimal amount, not undersizing the case neck by .010" or more than pulling an expander ball to make the neck the correct size, the cases last longer. Annealing gives me a fairly consistent metal performance so the cases are about as accurate as can be. The rest is up to the operator, rifle, and conditions.