It's a 50 cal. Omega Z5 I've had for a while. Never did a whole lot with it, knocked over a few deer over the years. Stuck with the 100 grains by volume load of BH209 under all sabots and PBs. Hate the trigger pull on the rifle, way to much for me. It has a Nikon Omega 3X9 mounted on it. The Nikon is all right for a low end scope, I personally don't like the eye box on it but the eye relief is nice, it's the one without all the circles. Im my opinion it's more to do with the seal of the longer black sabots than which bullet you use. I've shot T777, Shockey Gold, Goex, and White Hots in it, the BH209 is the cream of the crop to me. No mess, no crud ring, accuracy holds for several shots, and not much smoke. I used a Power Rod to seat all loads to save on my hand. Hopefully I'll have some more time and try shooting out to 200 yards soon, need to resupply before heading out again. Thanks everyone.