If you're concerned about a .24 minimum requirement you need to seriously consider the 6mm Max. It's not only in a sweet spot performance wise, but also not as finicky as the 6 ARC.

“You never need fear a man, no matter what his size. When danger threatens, call on me, and I will equalize.”
Samuel Colt.

�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson