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270 RUM & 257 stw
I was looking on MRCs website and saw these caliber but i can't find any info on them
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http://www.christensenarms.com/ were building the .257 STW. Good luck.
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Sounds like somebody's having fun with RUM and STW cases :)
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Barrel burners fer sure...lots of powder in a small bore...you'd be lucky to keep the throat in either for 750 rounds and that might be a stretch at that, get yourself a good ole 7mm mag, it's about the same things and would outlast either..
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The .257 STW is just that, a 7mm STW necked down to .257...barrel burner but extremely flat shooting to about 600yrds...
Never heard of a .270 RUM, but I'm guessing all it is is a 7mm RUM necked down...not much selection in big .270 bullets tho... |
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