Funny thing about loadbooks, a member asked about loads for his S&W mod 28 for a 180 grain xtp bullet in hornady section they list 10.5 grains AA no9 as max load 1050 fps. If you flip over to the Accurate Arms table further on in the book Accurate lists 11.7 grains as starting load 11.7 grains and maxload of 13.0 grains for a velocity of 1437 fps from their 8 in. testbarrel.Who do you believe?