I bought one from another member in 308 caliber with scope. Its original plastic stock had sharp edged "fins", certainly missed in Quality prior to shipping, from the edges where the injection mold halves came together and perhaps too great a pressure. Everywhere the hand glides along the stock there is a very sharp "cutting edge".
I contacted Ruger. They shipped me a NEW stock, no questions asked, one of a modified mold and rolled smooth edges.
I reloaded some 168 gr., 165 gr., and 150 gr. jacketed bullets from Hornady, Sierra, and Nosler respectively. The rifle digests it all and delivers exemplary performance to 250 yards in a compact carbine length rifle that mimics my Winchester 270 in accuracy and position.
The removable knurled muzzle cap protects micro-threads there for the addition of a brake or suppressor - I assume. Anyone use one of those on a Ruger American Predator rifle?