Happy to report I was able to load up 5 different loads and get to the range yesterday.

I was using lead round nose 25 ACP bullets, cast by Bear Creek Supply. Loads with 1.9grains of Unique were accurate and showed no pressure signs. Hotter loads with 2.7gr Unique showed issues with cratered primers and sticky opening, so I'll be tearing those down to re-do with lighter charges (including trying 1.7gr Unique).

I did not try shooting any of the jacketed round nose 25 ACP projectiles from PPU, as I had those over 2.7gr Unique and I'd already seen issues with that much powder and LRN bullets.

Remington 6/12 primers seemed to give better accuracy than regular small rifle primers. Will need a bigger sample to confirm.

No difference I could see between RMC turned brass cases and reformed cases made from 22 Hornet brass.