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Is it true that FMJ's are harder on barrels than "regular" hunting and match bullets?
I've never heard of a bullet with a steel jacket...ever. I would think it would be incredibly dangerous if one were to be fired in any kind of firearm, as it would result in a radical pressure spike.I'm no expert but I would say it depends on what the jacket is made of, "metal" as in "full metal jacket" is a broad term. If the jacket is steel then it would probably be harder on a barrel, if it is copper I don't see why it would be different than our hunting and target bullets. All the fmj bullets I've used were copper.![]()
I've never heard of a bullet with a steel jacket...ever. I would think it would be incredibly dangerous if one were to be fired in any kind of firearm, as it would result in a radical pressure spike.
I have heard of solid copper bullets being harder on barrels because they do not have a relatively soft lead core that will "give" slightly if the bullet jacket meets any type of barrel constriction. Solid copper, or gilding metal, bullets have tighter tolerances than conventional jacketed bullets, which in turn have tighter tolerances than cast bullets: The more lead in the bullet, the more it will give as it is fired, making them somewhat of a safeguard against higher pressures.