I have been studying up on smokeless muzzle loaders. The ballistics on these things is awesome. Just got done watching a video with a one shot kill on an antelope at 715 yds. I have decided to build one on a 700 remington action using a Boyds AT-ONE stock. Thes rifles use a max charge of 78grs of IMT 4198 and develop velocity's over 2800 to 3000fps.