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Reload this Page MK 248 MOD 1 .300 Winchester Magnum Round
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MK 248 MOD 1 .300 Winchester Magnum Round
 
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Old 10-12-2011, 03:33 AM
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Join Date: Apr 2004
Location: Brisbane, Australia
Posts: 48
MK 248 MOD 1 .300 Winchester Magnum Round
Anyone know the components of this load?

All I can find out from the web is, Sierra 220gr GMK at 2,850 fps (out of the XM2010's 24" barrel)
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Old 10-12-2011, 05:30 PM
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Re: MK 248 MOD 1 .300 Winchester Magnum Round
The only further info I have is what I've read and it stated LC, Fed, or WCC cases H1000 and Fed215Ms, no statement of powder charge weight but probably 75-77grns.
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