In my range sessionlast week-end with the Mustang, I shot300 grain Gold Dots incrush rib sabots (not a real tight load in the bore) over120 grains GOEX FFFg and got a three-shot average of 1650 fps. I would guess the XTPs over 100 grains would get something less than that, even with a tight sabot.

Just checked my old Mustang targets. In May of `07 I shot 300 grain Remington semi jacketed hollow points in MMP orange sabots (tight fit in bore) over 100 grains of Pyrodex RS and got a five-shot average velocity of 1393 fps. In June `07, I shot some 300 grain XTPs in crush ribsover 100 grains of T7 and got a five shot average of 1747 fps.