My goto cast bullet load for the Kragis
Lee C312-185 (cast from wheel weights)
19.0 gr SR-4759
CCI primer
R-P brass
The bore in my rifle is over-sized and the 312 bullet shoots very well.
With jacketed bullets, I've had fair success with IMR4350 under the 220 gr Hornady round nose. I don't have my notes with me right now so I don't recall the charge weight.