I have the 452 Lux, very nice accuracy out to 50yards. Tight groups, sometimes getting little cloverleafs. Same ammo (Remingon 22 Thunderbolt box of 500) opens up quite a bit at 100 yards. I'll have to experiment and see if I can find anything that groups better at that range.

The bolt is a little stiff, needs some sandingand/or use. Needs to be cycled a lot more to work out the stiffness.