I've got a bunch of their Large Rifle primers.. .they work fine. I also recommend taking a look at Magtech.. I have a whole bunch of their large pistol primers, use 'em in .45ACP and in .44 Magnum... I've found my handloads (.44 Magnum, 240Gr. XTP, max with H110) are more consistent (I have a chrony) with the Magtech--I compared them to Winchester and CCI-- I was surprised, to say the least.