Here's my custom 300 WSM built on a Stiller Predator Action PacNor Super Match stainless steel barrel in a Manners Composite Stock. M5 Detachable bottom metal, and its topped with a Vortex Viper PST SFP 4-16X50. Haven't finished working up a load yet, below is an early load with Norma Brass and Barnes 180 TTSX Bullets.