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175 MK's...1-10" or 1-12"?

 
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  #1  
Old 12-21-2002, 04:14 PM
 
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175 MK\'s...1-10" or 1-12"?

This is for a 308 bolt gun with a Lothar Walther barrel that will be shot in Tactical Matches up to 1000yds. I want it to shoot the 175's, don't care about the 168's. Which would I be better off with? What muzzle velocity would I need to stay transonic at 1K?

Thanks, Keith
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  #2  
Old 12-21-2002, 04:32 PM
 
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Re: 175 MK\'s...1-10" or 1-12"?



[ 07-12-2003: Message edited by: S1 ]
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  #3  
Old 12-21-2002, 06:08 PM
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Location: Canyon Ferry, MT
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Re: 175 MK\'s...1-10" or 1-12"?

Marine sniping rifles in .308 are twisted 1-12. Marines shot them out to 1000 yards with the 175grSMK.

S1, could you elaborate on the weather conditions where 1-12 will not work, and exactly what effect these weather conditions have on the bullet/accuracy. I do not ask out of disbelief, but it surprises me that the military would use 1-12 if 1-10 would have advantages in variable weather conditions.

Thanks, MM
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Old 12-21-2002, 06:59 PM
 
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Re: 175 MK\'s...1-10" or 1-12"?



[ 07-12-2003: Message edited by: S1 ]
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Old 12-21-2002, 07:22 PM
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Re: 175 MK\'s...1-10" or 1-12"?

Thanks for the feedback S1.

I always prefered a 1-10 in my .308 bore rifles for versatility in bullet weights on the heavy end. I shoot 190 gr SMKs in my 1-10 twist 30-06. Work well. I've tried them in my 1-12 .308, to 200 yards. OK at that distance, but haven't shot them at long range.

MM
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  #6  
Old 12-21-2002, 07:42 PM
 
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Re: 175 MK\'s...1-10" or 1-12"?



[ 07-12-2003: Message edited by: S1 ]
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  #7  
Old 12-22-2002, 01:10 PM
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Re: 175 MK\'s...1-10" or 1-12"?

BH, I'm not sure on the M40A3.

MM
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