CZ.
I have the 550FS in 9.3x62, and it's the catsazz.
GREAT trigger (fully adjustable, and set-capable). PLENTY accurate. CRF (always a plus).
Talley QRs fit beautifully.
Gonna swap the rear sight on this one for a Whitworth three-leaf express post season; mate with a NECG bead out front (ivory-ish). And, eventually gonna swap the safety for a three-position M70-style rig.
Other than that, I can't think of anything that I'd change.
