My friend and I are planning a muzzleloader hunt in CO this season for elk and mule deer. We bought several different conicals and went shooting this past Saturday. However, neither of us can explain the results. We were tracking velocites and shooting 100 yard groups. The 2 test guns were a TC Triumph and a TC Endeavor. Both guns are .50 cal and have 28" barrels. The Triumph has a slightly tighter bore (observed through loading). We both were shooting Blackhorn 209 powder with CCI primers. Our loads were identical in every way however the Endeavor consistently achieved much higher velocities than the Triumph. Can anyone explain the observed disparity in velocity? See selected data below.
80 g. Blackhorn 209 w/ 460 g. No Excuses Conical
Triumph = 1400 fps
Endeavor = 1750
80 g. Blackhorn 209 w/ 440 g. Parker Industries Hydracon
Endeavor = 1765 fps
90 g. Blackhorn 209 w/ 440 g. Parker Industries Hydracon
Triumph = 1500 fps