have you shot your bow through a chronograph?

Discussion in 'General Archery Forum' started by MUZZY 77, Jun 12, 2007.

  1. MUZZY 77

    MUZZY 77 Junior Member

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    I have a switchback xt 60lbs 28in. draw my total arrow weight is around 340 grains. I shot it threw the graph and it shot 255. Does this sound about right? Was a lil disapointed, I understand that IBO is 70 lbs and 30in so I wasnt expecting 315 but thought maybe 280. No Mathews hating PLEASE.
     
  2. Dredly

    Dredly Site Guru

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    255 sounds a bit low but then again:

    +40 grains on the arrow (- 5 fps)
    - 10 pound draw (-5 fps)
    - 2 inches draw weight (- 20 fps)
    + whatever is on your string (- 15 fps)

    I would think you should be in the 270's at least
     

  3. mdewitt71

    mdewitt71 Senior Member

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    Here are some speeds of my setup I have had:

    HCA Carbon 4Runner Pro (29" draw) @ 68 lbs- 358 grains = 270 FPS
    Bowtech Allegiance (28.5" draw) @ 70 lbs- 373 grains = 294 FPS
    Bowtech Allegiance (28.5" draw) @ 70 lbs- 363 grains = 302 FPS
    Newberry Sabre (29" draw) @ 70 lbs- 363 grains = 294 FPS
    Ross 334 (28.5" draw) @ 71 lbs- 363 grains = 272 FPS
    Ross 337 (28.5" draw) @ 63 lbs- 326 grains = 270 FPS
     
  4. Jay Are

    Jay Are Junior Member

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    Since you already told us not to do any Mathews hating... you took all the fun out this thread! :biggrin1:

    It does seem low... I know someone that has a SB XT at 65#, 27" DL and 380 grn arrows shooting 265. Nothing on the strings, stock strings and bow.

    I would recheck your equipment and try a different Chrono to see what happens. :noidea:

    lets us know what the outcome is.
     
  5. kbohunt

    kbohunt are u a fat boy?

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    off!

    Isnt that -10 lb draw=(-20 fps) ?:biggrin1:
    +40 grains on the arrow=( -8 fps)
    For every 1lb you change on your bow = 2 fps
    For every 5 gr on arrow wt = 1 fps :biggrin1:
     
  6. Sniper

    Sniper Senior Member

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    Yep. That's a Mathews. Once upon a time they were cutting edge fast. Now, oh well..... I don't hate them. I just don't want one.
     
  7. Wheely

    Wheely Wheely Threads

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    I just got new arrows so we chronoed mine yesterday
    My arrows are 270 gr.
    DW 48#
    DL 25.5"
    and I am shooting 233 fps
     
  8. J.A.G.

    J.A.G. Senior Member

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    35# 27" draw, 250 gr. arrows = 250 fps
    35#, 26.5" draw, 220 gr. arrows = 262 fps
    just went to 40# last night on one of my bows, will chrono and let ya know..
     
  9. BowhuntnHoosier

    BowhuntnHoosier Bisquit.......

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    Shot mine through the chrono before the shop owner shot it.:tape:

    My setup was this when I shot through it:

    29" 72# 80%
    390gr arrow
    WB rest
    Cat whiskers, string loop on the string
    Arrow speed 276fps

    As long as it hits the mark that is fast enough for me.:peace:
     
  10. J.A.G.

    J.A.G. Senior Member

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    You know I've got to ask..... what did the shop owner shoot it at? :decision:
     
  11. BowhuntnHoosier

    BowhuntnHoosier Bisquit.......

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    Not sure probably a freakcurve.:tape: :noidea: :laugh:
     
  12. Holy Smokes

    Holy Smokes Senior Member

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    Martin ShadowCat~~ 29 3/4" dl~ 352gr Jammer/point @ 57# =282fps
     
  13. Ronhop

    Ronhop RIP

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    No.

    Bowtech Allegiance 72# + Easton Axis 400 29" arrows + 100 grain points = pretty fast

    Mathews Ovation 61# + Easton Fatboy 400 29" arrows + 100 grain points = pretty slow
    :biggrin1:

    Ron
     
  14. BUNNYMAN

    BUNNYMAN I pray for you!

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    Mathews Switchback......perfectly tuned....
    27" 64lbs....323gr arrow.....260fps

    sounds right to me......
     
  15. poorly tuned 06 alleigance, beman 340's,100gr point, 406 total arrow wt,
    =289fps
     
  16. BUNNYMAN

    BUNNYMAN I pray for you!

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    whats the draw weight and draw length.....?
     
  17. sorry meant to add that. draw length is 29.5, wt is 70#. and it has the "speed" mods.
     
  18. bullspotter

    bullspotter Senior Member

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    I would never try to shoot my bow though a chrono, dont think it would fit. What would you shoot it with anyways? anouther bow?:noidea:
     
  19. Ronhop

    Ronhop RIP

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    That's funny...
    :laugh:

    Ron
     
  20. Deezlin

    Deezlin Junior Member

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    Yeap, that thing needs a tune up bad.

    I have a Cougar SE Dynacam, 60#, 30" draw, 450 gr Axis arrow total weight and I am getting 250 fps.