The double is regulated with 300 grain Hornady spire point bullets at 2100 fps and does this at 100 yards:
with peep sight -
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With scope sight-
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In my 1895 .405, the 400 grain bullets shoot about 4 inches lower than the 300 grain bullets at 100 yards, so rather than the six o'clock hold used for the 300 grains, I just put the bead on what I want to hit and it works great(especially for big critters). If this holds true for the double, I will be quite pleased!

Last edited by crshelton; 05/30/16.

CRS, NRA Benefactor Life Member, Whittington Center, TSRA, DWWC, DRSS
Android Reloading Ballistics App at http://www.xplat.net/