What exactly does tumbling do? Does it leave a larger hole in flesh then the diameter of a bullet?
What exactly does tumbling do? Does it leave a larger hole in flesh then the diameter of a bullet?
It cleans your brass.
Tumbling means the bullet looses it's spiral and rotates front to back, or awkwardly at the very least. Some twist rates are not compatible with certain bullets usually due to their weight, so they may tumble after one or two hundred yards.
As far as leaving a "larger hole", several factors come into play regarding entry and exit wounds. Read up a bit more here and you will find out what you want to know.
ermac, Have you read this--https://www.m4carbine.net/showthread.php?t=34714?
Probably because it is not possible to accurately measure it...
ermac: One common misconception on "tumbling" - and I don't know if you had it or not - is that tumbling means the bullet is flipping end-over-end like a helicopter blade. That's not what happens. In virtually all cases, a conical bullet will make exactly ONE 180 degree rotation so as to travel base first - that's it.
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