I learned how valuable a chronograph is yesterday.
I had loaded up some 7mm Rem Mag before and shot all the way to “max” loads based off Barnes load data. I shot them and never saw any pressure signs all the way up to max, but I didn’t have a chronograph.
I found Hodgdon data to be way different than Barnes, so I loaded up some at Hodgdons data. Well on the first few shots I was 100fps over their max velocity. I was shooting 68 grains of H1000 to start and was seeing faster velocities than their max load of 73.8
|