this is my setup. i use thecci primers,precision black mmp hi pressure sabots,i have my scope setup for 451. diameter230 gr xtp hp,and i use 150gr.s of 777. i have it set where it hits 2 inches above a 2 inch bullseye at 50 yards. at a 100 yards its dead on or a tad high,at 150 its right on,at 200it starts droping a few inches or so ,at 250 its drops 15 inches. and all these shots were made using a gun vice. i have tried the 230 gr. full metal jacket xtp and they stack one on top of another, i also shoot 300 gr plated soft point bullets made by speer,they drop alot faster but they go all the way through and that what counts when shooting big hogs. i tried the dead center bullets and had very good grouping but i can't aford to shoot them. My xtps cost about $13.oo per 100 and the sabots are about $5.50. per 50