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 Guest

    13
    0
    0
    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

    4,358
    3
    0

    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

    306
    0
    0
    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

    1,403
    4
    0
    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?

    3,237
    0
    0
    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

    975
    1
    0
    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

    5,611
    12
    0
    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

    1,378
    0
    0
    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.......

    13,897
    15
    38
    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

    1,378
    0
    0
    You know I've got to ask..... what did the shop owner shoot it at? :decision:
     
  11. BowhuntnHoosier

    BowhuntnHoosier Bisquit.......

    13,897
    15
    38
    Not sure probably a freakcurve.:tape: :noidea: :laugh:
     
  12. Holy Smokes

    Holy Smokes Senior Member

    6,721
    14
    0
    Martin ShadowCat~~ 29 3/4" dl~ 352gr Jammer/point @ 57# =282fps
     
  13. Ronhop

    Ronhop RIP

    3,967
    1
    0
    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!

    29,903
    12
    0
    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!

    29,903
    12
    0
    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

    1,047
    0
    0
    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

    3,967
    1
    0
    That's funny...
    :laugh:

    Ron
     
  20. Deezlin

    Deezlin Guest

    16
    0
    0
    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.