You'll never get a straight answer.
Long ago, I was told you could go "rifle in pistol" if you back off the load some, but never "pistol in rifle".
Supposedly because in some rifles, especially auto loaders, the "softer"
pistol primer may fire as the round is slammed in the chamber.
I am not endorsing this statement, but do know the fellow well enough to know he had done it for years.
I personally have shot hundreds of his .357s, that were small rifle primed, without a glitch. They were reloads I got in a horse trade. Didn't find out all this until later.
Thats one problem with shooting someone elses reloads, yet it did tell me
it worked.

As far as factory,

I have several boxes of factory 30carbine.
I have a .30carbine revolver and rifle.
They shoot fine in both.
I can only assume it is rifle primed, since it was a rifle cartridge orignally
, yet it always goes boom in my revolver.
When I reload this brass, am I supposed to load some for pistol and some for rifle?

I shoot lots of factory 44mag in revolvers and rifles.
All rounds shoot fine in both.
I can only assume, the various 44mags, are pistol primed, as its a handgun cartridge
originally, yet work fine in auto and lever rifles.
When I reload these, I don't plan on using anything other than large pistol.
They'll do just fine in my rifles, I know.