I obtained a new (to me) 416 Rigby built on a Brno ZKK 602, I would like to take it out and give it a run, but I can't find primers anywhere. All 4 of my reloading manuals (Asquare, Hornady, Nosler, Barnes) List the primer to use as a Federal 215 (Or 215M, depending on source)

Trouble is, all the gunshops I went into say they haven't seen Federal primers for over a year, shortage or some stuff like that.

So My question is, what Could I use in substitute for the Federal 215?

I'm using a Remington 9 1/2M in my 375 H&H, Could that be used?

Current components are:

Hornady Brass
Hornady 400 GR RN Interlock projectiles
IMR 4350 Powder

Thanks.

Trev