Going thru old supply of 3 gun bullets. Came across 1000 rounds of sierra 69 gr BTHP match. Did some load work up with the Hornady 62 gr and found my barrel likes that 3260 area with. 30.6 of Lever.. Hornady load data for their 68 gr BTHP has max charge of 29.5 of Lever. Do you think this is a...