"What? Gatling's detachable stick magazine doesn't count?"
In the context of what I'm thinking of, no.
Those magazines were gravity powered.
I should have been more specific regarding an internal spring integral with a follower.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.