777
CVA Buckhorn with standard Fiber optical sights (I do not own a telescope sight) I use 70 Gr 777, and one of those new Hornady easy load 250Gr. Sabots. Put 4 shots in a 3" circle at 50 yd. next, tried the 100 yd target. Aimed high, thinking I would have some drop off, and was off the paper (8½ x 11 sheets- I print my own) second shot a little lower - still just nipped top of paper. 3rd shot - in the 6" red circle - 4th shot in the yellow 3" center, still an inch high of center. Don't know what else to add. Never had a sabot melt in 2 years, using 777. Every rifle has its own "sweet load". keep trying