Always one of the most popular Varmint models, the Pro Varmint has a heavy 16.5 barrel threaded 1/2â€”28 for use with a suppressor or other muzzle device. Riding in a black-painted laminate stock, it incorporates features found on much more expensive stocks without pushing the price of the rifle through the roof. The short barrel gives plenty of time for the cartridge to get a full burn while increasing the rigidity of the barrel, resulting in a rifle that drives tacks. Quietly. The stamped bottom metal of the 455 is gone, swapped for a classy two-piece interlocking system. To make scope fitment easier, we ditched the 90 degree bolt rotation in favor of 60 degree, allowing for larger ocular bell diameters with lower ring heights. To top it all off, the 457 now features a trigger adjustable for weight, creep and over-travel. With the exact same swappable barrel system as the 455 and the same reliable polymer magazine system, the 457 is without a doubt the best rimfire platform we’ve ever fielded.