A bolt release and a bolt disassembly catch on the left side of the gun make maintenance easy. The 550-FL’s integral mounts feature a retaining slot machined into the receiver under the rear base to help keep rings from moving under heavy recoil.

Topside on the receiver, CZ has machined twin square bridges with a 19mm dovetail directly into the receiver for secure scope mounting. CZ manufactures its own rings.

For those who like open sights, CZ supplies a Williams-type rear assembly that is adjustable for both windage and elevation. A white bead front with a protective cover grace the muzzle.

A familiar three-position safety sits just aft of the bolt. Pushing it all the way forward allows the gun to fire. Mid-position allows you to work the bolt to add or remove ammunition with the sear blocked. All the way back locks both the bolt and sear.

The rifle has a European style cheekpiece and thick, comfortable recoil pad. For iron-sight die-hards, a Williams-type rear sight and hooded bead front grace the barrel.

A catch on the left side of the receiver allows withdrawal of the bolt for travel or cleaning, and on the left side of the bolt shroud is a disassembly catch that allows easy disassembly for maintenance.

The trigger is a combination single-set and conventional trigger. In its regular function pull weight registered four pounds on my trigger gauge, with just a hint of slack. But when I pushed the trigger forward to the "set" position and measured again, it broke at just over one pound. Now that's cool.

My gun sample was chambered for the .243 Winchester and featured the fully detachable magazine, which dropped directly into my hand with a nudge of the release hidden within the trigger guard.

At the range, the gun proved its mettle, shooting under an inch with Remington's 80-grain Power-Lokt hollowpoint. As far as I'm concerned, the rifle is worthy of any hunting chore the New England countryside I call home can throw at it.

ACCURACY RESULTS: CZ-USA MODEL 550 FS
.243 Winchester	Bullet Weight (gr.)	Muzzle Velocity (fps)	Average Group (in.)
Remington Power-Lokt HP	80	3,075	0.75
CorBon DPX	85	3,178	2.00
Winchester SP	100	2,786	1.75
Notes: Average of three three-shot groups fired at 100 yards from a rest. Abbreviations: HP, hollowpoint; SP, softpoint