Welcome to the Forum AND to handloading.
Questions pop up all the time. And I always ask; "What do your manuals say? Yes,, MANUALS as in plural. A good handloader has several, and can cross reference things.
Now,, you won't easily find military primers listed in commercial manuals. BUT,, you should always start low & work up ANY load with changes in components.
So, using your manuals,, starting with the one that shows the components you are using as closely as possible,, start at the beginning load, and work up. Let your gun tell you if it likes the ammo you make. And of course,, approach the maximum charges & such with caution.
I know this isn't exactly the type of answer you are seeking. But you are building ammo, and it should be approached with study, caution, and care to avoid any potential dangerous issues.
I've been doing my own study & handloading since the 1970's, and by following the manuals,, and careful building of ammo, I've never had an ammo related issue in my guns. And yes,, I always buy & update my manuals when new ones come out.