The ultimate in quick loading, the Thompson/Center 4-in-1 Quickshot is one tool that does it all: carries your powder, projectile, and cap, plus serves as a bullet starter. .50-caliber magnum holds a pre-measured powder charge of 150-gr. of black powder or Pyrodex equivalent. Top recess holds a 209 primer. Per 2. Available: .50 caliber-red, .50 caliber magnum-black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Loading Accessory.