Please ensure Javascript is enabled for purposes of website accessibility

Arrow drop question

Discussion in 'Tech Talk' started by Capt Don, Aug 18, 2014.

  1. Capt Don

    Capt Don Newb

    Joined:
    May 21, 2014
    Posts:
    32
    Likes Received:
    0
    Dislikes Received:
    0
    Location:
    Naples, Florida
    I went out this morning and set my target at 30 yards and when shooting I notice an arrow drop when it's in the air. I'm getting my groups fine. My bow is a compound bow 40-50lbs and I have it set at 40lbs and am shooting a 500 grain arrow with a 100 grain field tip. I'm getting used to the 40 lbs, is it time to crank it up to maybe 45lbs to get a straighter arrow flight? Or is this normal. I'm hitting the center of the target regularly in good groups.
     
  2. JasonOhio2018

    JasonOhio2018 Die Hard Bowhunter

    Joined:
    May 2, 2014
    Posts:
    2,586
    Likes Received:
    1,448
    Dislikes Received:
    1
    Location:
    North East Ohio
    I would say it's normal shooting 40lbs. Try turning it up a bit. You may also want to try 75-85 grain field tips as well.
     
  3. frantzracing0

    frantzracing0 Weekend Warrior

    Joined:
    Jul 3, 2012
    Posts:
    508
    Likes Received:
    1
    Dislikes Received:
    0
    500 grains out of a 40 pound bow is going to experience alot of drop. I would drop the arrow down to 350-380 grains and shoot a cut on contact fixed head
     
  4. tfox

    tfox Grizzled Veteran

    Joined:
    Jul 25, 2008
    Posts:
    5,915
    Likes Received:
    8
    Dislikes Received:
    0
    Location:
    henderson ky
    Keep it comfortable above all else. You will see a noticeable arc in the arrow at 40#, regardless of arrow weight. I see it at 57#. There is no such thing as "flat" when it comes to archery.
     
  5. tfox

    tfox Grizzled Veteran

    Joined:
    Jul 25, 2008
    Posts:
    5,915
    Likes Received:
    8
    Dislikes Received:
    0
    Location:
    henderson ky
    Are you sure you have a 500 gr arrow or is the arrow a 500? Meaning 500 spine.
     
  6. choppersk61

    choppersk61 Weekend Warrior

    Joined:
    Mar 21, 2014
    Posts:
    365
    Likes Received:
    0
    Dislikes Received:
    0
    Location:
    Canada
    At 40 pounds and 600 grains total weight and your sight at 30 yards, your arrow will reach 4.8 inches above target when at mid-point (15 yards).

    If you were to shoot at 40 yards with the same pin, the arrow would be almost 9 inches too low. so yes it is a normal ballistic curve...

    The more pounds, the less the curve is pronounced, but it is still there
     
  7. Oly44

    Oly44 Grizzled Veteran

    Joined:
    Dec 19, 2011
    Posts:
    5,659
    Likes Received:
    499
    Dislikes Received:
    2
    Location:
    Freeport, IL
    This would be my guess a lot guys get mixed up.


    Sent from my iPhone using Tapatalk
     
  8. dorobuta

    dorobuta Weekend Warrior

    Joined:
    Oct 30, 2013
    Posts:
    108
    Likes Received:
    1
    Dislikes Received:
    0
    Location:
    Chandler, AZ
    All arrow flight is a ballistic arch. The height of the arch will depend ultimately on how fast the arrow is going.

    Remember, the instant the arrow leaves the bow, it is falling towards the ground. This is why the longer distant pins are the lower ones. This raises the bow and increases the height of the shot.
     
  9. Capt Don

    Capt Don Newb

    Joined:
    May 21, 2014
    Posts:
    32
    Likes Received:
    0
    Dislikes Received:
    0
    Location:
    Naples, Florida
    Sorry guys, this is what happens when your dealing with a newbie. I found the arrow box and they are Shaft Size 500, not 500 grain as I originally said but I am shooting with 100 grain field points. I guess I don't know the weight but they are Blackout X5 Envy arrows and I did find that it says 7.2 grain per inch of arrow. I appreciate everyone's help. I had read about the ballistic arch and I guess that I forgot about it.
     
  10. gltomp

    gltomp Grizzled Veteran

    Joined:
    Aug 6, 2011
    Posts:
    3,428
    Likes Received:
    353
    Dislikes Received:
    1
    Location:
    Chemung County NY
    Don't be sorry... we all started out as 'newbies'. :tu:
     
  11. Pro V1

    Pro V1 Die Hard Bowhunter

    Joined:
    Dec 16, 2009
    Posts:
    1,380
    Likes Received:
    6
    Dislikes Received:
    0
    Location:
    ND
    true dat!
     
  12. BukFvr21

    BukFvr21 Die Hard Bowhunter

    Joined:
    Jul 15, 2014
    Posts:
    1,118
    Likes Received:
    123
    Dislikes Received:
    0
    Location:
    East Central IL
    Turning it up would help some as well as going to a little bit lighter head. What is your draw length? The reason I ask is I've seen some new guys get some arrows from a box at the store throw some field tips and start shooting. Most arrows are around 31 to 32" long so if you have a shorter draw length you don't need all that excess arrow weight. That could also help lower your arrow weight.
     
  13. dorobuta

    dorobuta Weekend Warrior

    Joined:
    Oct 30, 2013
    Posts:
    108
    Likes Received:
    1
    Dislikes Received:
    0
    Location:
    Chandler, AZ
    it's all good.
     
  14. Capt Don

    Capt Don Newb

    Joined:
    May 21, 2014
    Posts:
    32
    Likes Received:
    0
    Dislikes Received:
    0
    Location:
    Naples, Florida
    I have a draw length of 26 1/2 and I believe the arrows are cut to 27 or 28". I've been shooting ok for a beginner but now that my eyes are getting trained to follow the arrows a bit that's when I noticed the drop, but now I've realized the ballistic arc.
    Once again thanks for all the help and explanation
     

Share This Page