Poor mans chrono. May 2, 2011 23:03:38 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by SCOTTY (Squad Leader) on May 2, 2011 23:03:38 GMT -5 This is a vary helpful link.www.redwolfairsoft.com/redwolf/airsoft/BulletDetail?bulletID=34