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Old 10-26-2007 | 02:03 PM
  #9  
Mathewsboy
Nontypical Buck
 
Joined: Aug 2003
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From: Bessemer, MI
Default RE: how do you figure your arrow grain weight
You need MINIMUM of 5 grains per LB of bow weight.. so.. 68 * 5 = 340grs
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