It's mostly about the magazine type. The 'old' McCormick style are the worst - an unskirted lil' hatchet that could chip (no pun intended) away at the frame ramp when pulled forward by the last round in the stack being stripped from the mag:

[Linked Image]

McCormick thought so much of the design they changed it to a skirted version.

An assortment of mag types with a Cobra mag at the top of the heap for obvious reasons:

[Linked Image]


Forgive me my nonsense, as I also forgive the nonsense of those that think they talk sense.
Robert Frost