I did not read all the info the much wiser than I might have given you but I have loaded monolithic bullets for 30+ years , DO NOT start at the top load or anywhere close to it . I have never loaded the Hammer , Mr. Steve would be your source to speak with on them . Loading Mono bullets develope more pressure than lead core bullets , BEWARE , I use the Barnes catalog for all the monos I load and out of an over abundance of caution start 2-3 grains below lowest recommended charge. seat it out as far as is practical with low charge , no closer than 3 off lands and most mono manf. recommend starting at 5 off lands and sweet spot somewhere between 5-8 off lands . Anyone reading this that disagrees please correct me , but do not pull the trigger on that load !