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Posted: 1/15/2009 12:37:27 PM EDT
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How is fragmentation, when they are loaded to the same velocity?
Most of the posts I have read here say that steel isn't going to fragment as well as copper, if it fragments at all. However... Dr. Martin Fackler presents some data that is contrary to this. His example is with 7.62x51mm, instead of 5.56x45mm... but it still makes me question the generally accepted idea here. With photographic evidence to back up his claim.... he shows that German steel jacketed 7.62x51mm fragmented more than our American made copper jacketed 7.62x51mm (which didn't fragment at all, actually)... both being NATO spec. He gives the reason that steel jackets are typically thinner. So... are the claims here actually backed up with any evidence? I realize 5.56x45mm is a different cartridge, which is why I ask... |
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Impossible to answer without knowing/testing the particular bullet in question. You can design a fragmenting steel-jacketed bullet the same way you can design a non-fragmenting copper jacketed bullet. Not many people make fragmentation a concern when manufacturing FMJ bullets. |
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