Starting this thread for my 22 CM load development. Just made some dummy rounds seated to the lands of chamber with .100” freebore. Barrel is 7.5 twist, 24”.
Planning to start with RL16 and RL26 for 69AH and 74HHT
From left to right - 69 AH, 68 HHT, 74 HHT, 88 ELDM.