I recently did a ladder test because I changed to new Peterson brass in my 243w
I found it again liked it hot with the max load. I shot 6 to confirm and was pretty happy with the results. But then I reloaded some full length resized once fired brass and they shot pretty bad. The only difference being once fired.
I did a case volume test on full length sized new vs fl once fired (3 of each) and the once fired had 1gr more volume.
Should I try a little over max load to compensate for the extra case volume?
And why is there a difference in volume if they are both full length resized.
I found it again liked it hot with the max load. I shot 6 to confirm and was pretty happy with the results. But then I reloaded some full length resized once fired brass and they shot pretty bad. The only difference being once fired.
I did a case volume test on full length sized new vs fl once fired (3 of each) and the once fired had 1gr more volume.
Should I try a little over max load to compensate for the extra case volume?
And why is there a difference in volume if they are both full length resized.