I load them with standard powder loads for both my Mosin and my Enfield - and they are fantastic, less expensive, accurate etc. In fact - they seem to group better than the Hornady jacketed bullets I've used in the past. My Enfield has a fairly large bore (slugged at 0.314) and I'm starting to think the Frontier CMJ's are a bit "soft" and are "filling out" the grooves better than the hard jacketed bullets. Either way - they are a great deal, accurate and you don't have to shoot them with cast loads.