Crossbows - Everything about Building, Modding, and Using your Crossbow Gear

Latest topics

» 15th century saxon prods
by Geezer Today at 7:34 am

» Yet another one
by jocky Yesterday at 7:09 am

» Chinese crossbow with auxiliary string?
by c sitas Sat Jun 24, 2017 11:34 am

» Crusader crossbow
by c sitas Thu Jun 22, 2017 9:41 pm

» Whamo showed up, prod replacement ideas
by kenh Mon Jun 19, 2017 4:25 pm

» Renaissance Sporting crossbow
by tony a Mon Jun 19, 2017 2:10 am

» loose laminate issues
by c sitas Sun Jun 18, 2017 8:42 am

» Of Bows and Torsion Engines
by c sitas Fri Jun 16, 2017 2:55 pm

» My second crossbow
by Daniel Levesque Fri Jun 16, 2017 10:48 am

» Need to locate Windlass Crossbow, pre 1600, in Rome, Venice, or Florence
by 8fingers Tue Jun 13, 2017 11:24 pm

» Crossbow Projectiles
by Geezer Tue Jun 13, 2017 8:10 pm

» Greetings!
by OnlyHuman Mon Jun 12, 2017 7:40 am

» Anyone know what this is?
by Yuki23emma Sun Jun 11, 2017 2:54 pm

» Prod specs
by Onager Lovac Mon Jun 05, 2017 4:25 pm

» Finished Crossbow
by kenh Sat Jun 03, 2017 8:34 pm

» The Arbalist Guild - Around the World
by Turnigy Fri Jun 02, 2017 1:25 pm

» Reverse draw "compound" build
by Turnigy Fri Jun 02, 2017 1:20 pm

» Casting Resource
by White Oak Wed May 31, 2017 2:28 am

» The Road so far......
by White Oak Mon May 29, 2017 7:17 am

» GLOSSARY OF TERMS
by Onager Lovac Wed May 24, 2017 6:41 pm

» Hello from Maine
by White Oak Sun May 21, 2017 11:06 pm

» Leonardo Da Vinci string with suport-rolls
by Oppenheimer Tue May 16, 2017 11:40 am

» Compact repeating compound project
by Phil Abrahams Mon May 08, 2017 2:10 pm

» Trying to reduce the power stroke in my next project
by octavioaugusto.oliveira Thu Apr 27, 2017 1:27 pm

» Its good to be back!!
by Juan galeano Tue Apr 25, 2017 9:31 am


    Crossbow Ballistics with Recoil

    Share
    avatar
    Samuel Wilhelm
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 18
    Join date : 2013-10-04
    Age : 20
    Location : Norway

    Crossbow Ballistics with Recoil

    Post by Samuel Wilhelm on Fri May 16, 2014 12:51 pm

    hey, i've just made this 44 pound, traditional skane Crossbow, (with a Oak prod made out of a baseboard) and when shooting it in different positions such as loose hipfiering and the butt of the stock to the shoulder, rifle position thing, and i noticed a huge difference between those two especially, as when i loosely hold it hipfiering, it shoots fast and far, while holding it tightly to my shoulder the bolt starts dropping significantly, (yes, i could feel the recoil fairly well) all thou i held em both at 0 degree horizontaly... can anyone explain how and why this happens?
    avatar
    actionbow
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 125
    Join date : 2012-09-18

    Re: Crossbow Ballistics with Recoil

    Post by actionbow on Sat May 17, 2014 12:59 pm

    Chances are you just SEE more drop when shoulder fired. There is no reason I can imagine that it would have more or less arrow drop depending on firing position.
    avatar
    kenh
    Crossbow Junkie

    I live here!


    Crossbow JunkieI live here!

    Posts : 710
    Join date : 2012-08-03
    Age : 69
    Location : Living Aboard a Sailboat in Fort Myers, FL

    Re: Crossbow Ballistics with Recoil

    Post by kenh on Sat May 17, 2014 2:52 pm

    I agree with actionbow.  There simply cannot be any change in ballistics due to firing position.  Trajectory is a factor of bolt mass, prod draw weight and friction that's all.  You see the trajectory of the bolt differently from different positions, that's all.
    avatar
    actionbow
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 125
    Join date : 2012-09-18

    Re: Crossbow Ballistics with Recoil

    Post by actionbow on Sat May 17, 2014 2:54 pm

    If anything being against your shoulder would be a flatter trajectory but I doubt it would be a detectable difference.
    avatar
    Samuel Wilhelm
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 18
    Join date : 2013-10-04
    Age : 20
    Location : Norway

    Re: Crossbow Ballistics with Recoil

    Post by Samuel Wilhelm on Sat May 17, 2014 4:39 pm

    i suppose, i just find it so weird as when fiering it with the butt directly to the shoulder it seems to shoot so much down and while i shoot it with the stock over my shoulder while pulling the trigger upwards with my thumb it shoots perfectly straight and both of the times i have my check to the stock too, and my only conclusion would due the Recoil. nvm. ooh and another thing, about length of bolts, should they be as long as the groove of the crossbow, so it will be from the release to the front-end of the crossbow or smaller ones? i made 2 bolts one of wish was the full size of the groove and one that was smalles, maybe about half the size, they both had the same type of shaft and arrow head, i thought the longer one would go further as bows shoot longer than crossbows but it didn't, the shorter one went a few feet further and more accuratly, however i did not have any fletchings on either one of them, and wanted to wait to put them on wishever went the best, but then also, does fletching make bolts actually go further? and not only more accurate? (excuse my bad spelling and silly questions) thanks
    avatar
    actionbow
    Workshop Savvy

    Did you see my tool collection?


    Workshop SavvyDid you see my tool collection?

    Posts : 125
    Join date : 2012-09-18

    Re: Crossbow Ballistics with Recoil

    Post by actionbow on Sat May 17, 2014 6:11 pm

    A heavier arrow will drop faster. Fletching helps stability. The length of arrow depends on its overall mass weighting and the strength of the bow. For your bow try the thinnest, lightest arrows you can get. Maybe 5/16" X 16" birch dowel with steel tips.
    avatar
    Samuel Wilhelm
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 18
    Join date : 2013-10-04
    Age : 20
    Location : Norway

    Re: Crossbow Ballistics with Recoil

    Post by Samuel Wilhelm on Sun May 18, 2014 4:14 am

    ahaa, thanks

    Sponsored content

    Re: Crossbow Ballistics with Recoil

    Post by Sponsored content


      Current date/time is Mon Jun 26, 2017 7:57 am