they'll shoot fine off the lands, I use H4350
Not much vudoo with the 6cm, something in the 4350 to 4831 range for powder, fill the case and top it with a 100gr+ bullet, pretty easy to load for.
Lightest I tried was 87gr Hornady BTHP, and they even shot well with 4064.
I'm using 1/8 twist, settled on the Nosler 105gr RDF, still playing between IMR4350 & 4831 for powder.
Oh I thought that till I tried Barnes match burners. Lol




























