They have worked acceptably for me in all of the Boxer sizes. Small pistol, small rifle, and large pistol have all worked with no difficulties.
The large rifle primers are slightly larger in diameter than the usual CCI/Federal/Winchester primers. I had to polish the aluminum feed tube on my Dillon 550 with a .22 jag and patch coated with Autosol to get them to feed, but they worked fine after that was done.
All in all, good primers for a good price.