It depends, to some degree, on the bullet. Certain bullets have a minimum velocity at which they will no longer expand reliably. Some are as low as 700 fps and some are as high as 1200 fps. There is also an energy issue. Generally speaking, I would consider the 100 grain loads to be effective out to around 150 yards or so.

I know from personal experience thatsome sabot rounds (250 Shockwaves and 250 Barnes Expander MZ) will kill well out to 200 yards with 130 grains of pellets (two fifties and a thirty). It wouldn't hurt to try 150 grains of pellets - but in many cases the 130 grain load group better. Good luck. Roskoe