Have the 452 lux, 453 varmint, T-bolt varmint. 452 with fixed sights and high bolt lift requires high rings but with Euro heel not an ideal setup. The 453 trigger is fully adjustable and has adjustable set trigger and without sight takes scope better. YoDave trigger kit for $20 or so transforms 452 trigger and provides broader range of adjustment. Both excellent shooters. The mag wells are plastic and one required replacement. Mags are generally plastic, can sometimes find metal ones. With STD velocity rounds shoot sub moa at 100m.
T-bolt is slick to cycle. Plastic mags work well but durability of lips suspect and cost at least double CZ mags. Plastic trigger adjustable for weight (trigger guard also plastic). Overall quality disappointing for Browning and price. Shoots well enough, high velocity works better than standard but the 452, 453, TC R55, and custom 10/22 out shoot it (initially was disappointed with accuracy shooting std velocity and would not have considered it a keeper but then switched to HV ammo and good enough). Like it for its slick action, good mag system, spare mag in butt, very light / maneuverable, and I do not abuse my gear so lower quality level not a concern in terms of durability. Also, the CZs have too beautiful wood for me to use in the field.
The American and varmint versions handle differently so should try both before ordering but would pick one of those up before the T-Bolt. Would consider the T-Bolt a good field gun (works well with Burris Fulfield II 3-9 BP) and the CZs target guns.