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Discussion in 'Reloading' started by AJoldfart, Feb 28, 2021.
Are plated bullets FMJ?
If not why aren't they?
They aren't jacketed. They are plated. Very different animals in terms of manufacture, accuracy and consistency.
Similar animal to plastic coated pills
FMJ has a copper jacket surrounding the lead in the center.
Plated has a coating on the outside of the lead bullet.
Not all plated bullet are created equal, Berrys bullets for example sells thick plated handgun and rifle bullets that in some calibers can be pushed to a velocity equal or higher than the cartridge will generate, so using FMJ load data is perfectly fine with those particular bullets. In the majority of instances, though, plated bullets are normally loaded at cast lead bullet velocities or slightly under FMJ velocities. The copper plating in most cases is only a couple of thousands thick, it's basically a gilded metal jacket plated to the lead core that is softer, whereas a FMJ bullet is a metal casing applied mechanically to a lead core.