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one of us |
Anyone know much about this caliber?? Is it the same as 6mm.06? | ||
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one of us |
The .243 Rockchucker is the .257 Roberts necked down and slightly improved.Fred Huntington designed it in the 1950s. WC | |||
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Moderator |
WC is very close... and that might be the parent, it's the 7x57 necked down to 6mm and slightly improved, as the 257 is the 7x57 with no changes other than neck jeffe | |||
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