Well, the typical formula is \”smaller\” weight bullets use more powder, and heavier use less so when Jake (RMR) says to use the same loading as for the 124 Nukes I would say you will be safe. BUT with that said you always start low check for pressure/function/etc to be sure. Keep us posted on how they shoot and what you\’re using. The 120s shot lights out coming out of my Staccato P with a Holosun 509 mounted @ 50ft. I shot a very good group also out of my CZ PO-1 at the same distance.