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Thread: Speed nocks

  1. #11
    Join Date
    Jan 2013
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    Quote Originally Posted by Sonny Thomas View Post
    Depending on the bow and draw length and weight speed can be as little or nothing and as much as 12 fps.

    I went around and measured all my large single cams and dual cam bows. The first speed nock is right at 4 1/8" from the bottom axle. Additional nocks go up the string. Most have 2 speed nocks (brass string nocks) and covered with shrink tubes. One single cam bow has 3 speed nocks as a 4th and 5th didn't make a difference and began to tetter on giving a slightly slower speed. My wheel bows and a Command Cam bow do not have speed nocks as they proved useless - these cams are small.

    When trying speed nocks it's a trial and error thing. When chronographing have it set where it won't be moved until done and make a mark on the floor for foot placement - same distance from chronograph each and every time. Understand, the arrow begins losing speed as soon as it leaves the string. Normal distance from the face of a chronograph is given as one arrow length from the tip of the arrow or that the arrow is clear of the bow before crossing the first sensor.
    My chrono os an app on my phone, dont own one but this is pretty accurate

  2. #12
    Sonny Thomas

    Default Speed nocks

    Quote Originally Posted by Sabertooth View Post
    Wats a brass nock wiegh vs a 16 gr bowjax
    Good question. All at the shop, I'll weigh some Friday. I mean, there's bowjax and monkey things too.

    Problem is, most servings won't allow the string silencers to get down at that far, so too high and you'll hinder or not get speed gain.

  3. #13
    Join Date
    Jan 2013
    carroll, iowa
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    il leave my string alone with just peep sight, kissen button and a sloop and dont want t add anythings on cause speed loss, but i expect to remove a VEM silecner from my string and hope to change the string stop to CARBON with different bump but i dont now if it will fit the hole but i'll see

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