The Gas-Seal Revolver, the Toggle Pistol and the Box Magazine: How Each Case Gets Fed
How a cartridge headspaces — what stops it at the right depth when the action closes — decides what it can safely feed. This set contains ordinary rimless autoloader rounds, one semi-rimmed transitional design, and a revolver cartridge that works on a principle nothing else in production shares.
Sorting by mechanism prevents most of the expensive mistakes.
The revolver with no...