When I couldn't find a WMR barrel for my CZ 455, I decided to try a 457 barrel (they'd already disco-ed the 455s by then). It plugged in just fine, and the little rascal shoots superbly. I also have a CZ 512 autoloader in WMR that shoots just as well at 100 yards with the same ammo. You can't tell which rifle shot which groups.
Prior to that, I had no use for the WMR either. I just didn't need one. Or, know I needed one, take your pick. They are great little rifles for common vermin. You just have to use it within it's limits.
