Should I be using magnum pistol or large pistol primers when loading .44 Mag with H110? My first rounds I shot were with primed Winchester brass that I’m assuming had WLP primers in them and it shot 23.5 grains of H110 behind a 240 grain XTP with no issues. My question is now that I’m loading again, can I use the same load with large magnum pistol primers? I’ve heard mixed reviews on this topic
What do the people who claim it's a bad idea say will happen if you use the same charge and simply swap primers in this case?
Pressures will probably be different swapping primers, but will you notice? Is it best to work back up with new components? That's up to you. I have seen lots of guys run 25gr of 110/296 behind various 240 and 250gr bullets. Some of that, or perhaps all of it could be in the +P arena. I don't know. I do know that thousands of those haven't damaged any guns. It's the guys double-charging with the fast powders that have damaged the guns I've seen damaged.
I've noted no real velocity change between WLP and CCI350 using same cases and same powder charge from same lot of H110, but I have noticed that in cold temps around zero and a bit below, that WLP have not done a good job of igniting a case full of H110. I missed a gimme shot at an elk one chilly morning because of that, after a perfect stalk, when the load squibbed on me, and was more of a FOOM than a BOOM.
