Seasons greetings to all. I have been loading my 44 magnum pistols for some time and have no problems at all. But now I have a 44 magnum rifle {Henry}with a 20 inch barrel. The Unique powder will be to fast burning so I switched to 2400 powder. It was recommended in several articles and I will start 10% lighter and see how it goes. The question is primers, do I stick with large pistol or move over to large rifle? It may or may not make any difference whatsoever but I thought It would be good to ask The great knowledge pool on this site. Thank you very much. Neil