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Old 02-22-2010 | 01:36 PM
  #5  
idahoron
Nontypical Buck
 
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I saw that same thing with my 460 gr 500 S&W bullets in my SS 50 cal GMB. I was at 100 yards and had about a 3" group went to 150 yards and I had a 10" group. I backed the powder off to 80 gr and everything tuned perfectly. Ron
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