small primers so i guess theres no way to tell, maybe ill just load them in some 38 spl.
Load 1 and inspect, it may seat high.
Fire it (no powder/bullet).
Rifle primers are a bit "harder" to avoid slam fires and may not fire in a pistol.
I know from PE after reloading almost 1,000 9mms with rifle primers that would not fire in my pistol but would fire in 9mm PCC (see my old post regarding "anyone got a 9mm PCC")
A hammer fired revolver may be different.