Along with the usual 500 gr Woodleigh soft bullets I bought some 400 gr. Speer Gold Dot bullets for plinking. Does anyone have suggested loads for this bullet to be fired from a Heym 470NE?

Thanks.

Start some loads around 75 grains, 77 grains, and 80 grains of R-15 with a full foam wad, one of these loads should regulate fairly well.