Yes put my MTR Match barrel on a 457 Donner Action in a Chassis, lights out shooter with SK Std. plus.I have several rimfires including an Anschutz. I was never happy with my CZ 455 American as it shot accurately but threw flyers with almost all ammo. 6 months ago, a shooting buddy put a Lilja barrel on his CZ 457 MTR and sold me his factory match barrel. With the MTR barrel, my CZ now outshoots all my other rimfires and no flyers! Groups at 50 yards are consistently in the .2s and .3s with relatively cheap Norma TAC-22 ammo. If I were to buy another rimfire, I would buy the CZ 457 MTR. Just my personal experience for what it's worth!