I have the older 10FP in .223, and I've got 2 pet loads that produce really nice groups when I can do my part.
69gr Nosler Custom Comp. BTHP - 25.1gr H335, Wolf SRP (have had great luck with them), COL of 2.260".
75gr Hornady Match BTHP - 25.1gr H335, Wolf SRP, COL of 2.390".
No signs of pressure with either load thru the 24" tube on mine. I'd have to go digging thru my load data for the FPS. As usual, work your way up. These have done excellently in my rifle, but that's my rifle.