Home › Forums › Bows and Equipment › HELP WITH CARBONS?

Viewing 1 reply thread
  • Author
    Posts
    • MSARCHER
      Member
        October 8, 2010 at 5:24 pm
        Post count: 93
        #5249

        Im shooting a Chekmate Hunter II t/d 60#@28″, easton xx78 2117 (29″)w/ 125 gr eclipse broadheads w/ 75gr steel adapters. Im considering going to carbon (CX Heritage). The chart shows that i need 250’s but thats w/ a 125gr head. Since i’m shooting a 200gr head, how will this affect this? Also, i’m looking for EFOC and to weight up the arrow to exceed or meet the heavy bone penetration threshold Dr. Ashby recommends. How is the best way to load up the carbons to reach this? Ive tried calculating w/ weight tubes and 100gr brass inserts and am only coming up w/ a little over 500 gr arrow. I’m still new to all this so im trying to learn as i go. Amy help is appreciated.

      • Stephen Graf
        Moderator
          October 9, 2010 at 9:46 am
          Post count: 2429
          #39662

          To achieve the greatest EFOC, it is important to use the lightest shaft you can. CX shafts are heavier than goldtips. My personal experience is that gold tips fly better too. First thing to do is look around for the lightest shaft you can find. Then load up the front.

          I have found that as you get more weight up front, the spine gets less critical. My anecdotal experience is that when the FOC is in the normal 11 to 13% range, my arrows flew better when they were stiffer. As I went to heavier points and more FOC, the arrows flew better weaker.

          If you use a 175 grain point, 125 grain point insert, 100 grain arrow insert that gives 400 grains up front. An arrow will weight about 350 grains, so that is 750 grains total with a good FOC.

      • Author
        Posts
      Viewing 1 reply thread
      • You must be logged in to reply to this topic.