When I used them I loaded with H870 around 78-79 grains and 2950 fps. Now I would try R26 and 8133, several others would work well H1000, 7977, VV565, Magnum and more in that range. I only used them at shorter ranges and they were more frangible than I cared for and not consistent, for shots over 300 yards the bullet may settle down more. They did drop deer quickly so can't complain about that.