Substituting rifle primers for pistol primers

[Bottom Gun]

Interesting topic. I don't have any Large Pistol Magnum primers and I'm getting ready to start loading 44 Mag. Think I'm okay using Large Rifle, and if so, should I use Magnum or regular?

NO !!! There is a dimensional difference in the large primers. The large rifle primers are taller than large pistol. I think the difference is about .008". You can only interchange small primers.