FMJ vs Non-jacketed
So I'm speaking specifically about 5.56/.223 - your typical AR-15 caliber(s). I had a discussion about american eagle black box ammo (i found some at a good price and wanted to know if it was any good) with a friend of mine who's an avid AR-15 user/owner and this is what he said regarding metal jackets AND (non brass) cases: "Steel casings and jackets are primed with paint because eventually they will rust. As the barrel starts to heat up, the paint begins to melt inside the barrel. Eventually the paint sticks to the inner diameter of the barrel causing the barrel diameter to "shrink". As the diameter shrinks eventually it won't allow a bullet to pass through. I (he) saw a guy the other day that had fired 2 shots and the lead never left his barrel. Usually if it's just one jammed in the barrel it can be hammered out. But this guy had 2 locked together and there was nothing they could do to save the barrel. He had to buy another one."
Is this true? I read somewhere else that THIS would happen if the bullet WASN'T coated. In other words, a non-jacketed bullet will leave lead deposits in the barrel eventually having the same effect.
Can someone please shed some light on this? Thank you.
"Withhold no sacrifice, begrudge no toil, seek no sordid gain, fear no foe, all will be well." ~ Winston Churchill
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