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

Latest topics

» Geezer website?
by Geezer Yesterday at 3:01 pm

» Could I get advise on order of operations?
by Bs1110101 Wed Jul 19, 2017 4:02 am

» Blocked pictures by Photobucket
by Agniznag Tue Jul 11, 2017 11:02 am

» Renaissance Sporting crossbow
by chaz Mon Jul 10, 2017 12:22 am

» Welcome! Welcome! Welcome!
by Agniznag Sat Jul 08, 2017 12:26 pm

» The Arbalist Guild - Around the World
by Agniznag Sat Jul 08, 2017 11:56 am

» Questions about steel prod specs
by Daniel Levesque Fri Jul 07, 2017 7:58 am

» aluminum prod
by Geezer Fri Jul 07, 2017 7:50 am

» opinions please
by Geezer Thu Jul 06, 2017 10:19 pm

» Hello all!
by Tarzan65 Thu Jul 06, 2017 10:54 am

» Yet another one
by Daniel Levesque Sun Jul 02, 2017 9:37 am

» Renaissance peep sight
by kenh Fri Jun 30, 2017 4:48 am

» Crossbow with built in lever?
by kenh Thu Jun 29, 2017 11:24 am

» Chinese crossbow with auxiliary string?
by stm2010 Mon Jun 26, 2017 9:48 am

» 15th century saxon prods
by Geezer Mon Jun 26, 2017 7:34 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

» 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


    Making my first crossbow - need to be sure it's safe

    Share

    Gaeth
    Fresh Blood

    Doesn't mean
    I'm new to crossbows


    Fresh Blood Doesn't meanI'm new to crossbows

    Posts : 1
    Join date : 2014-08-27

    Making my first crossbow - need to be sure it's safe

    Post by Gaeth on Wed Aug 27, 2014 4:09 pm

    Hi, all. I'm going to be making a crossbow for my larp but unfortunately they have no rules specific to crossbows. They are allowed, but the restrictions given for archery aren't helpful when it comes to designing a crossbow - rather, they are more helpful for a standard bow.

    The rules state: "Bows need to be simple recurve bows with no more than 25 pounds at full draw, and with a Draw length of no more than 26”."


    Now, looking at that, I'm thinking that I should be fine with a 50# prod with an 8" powerstroke but as this is my first time making a crossbow, I wanted to get some advice from people with more experience as to whether or not I'm on the right track with this.


    Last edited by Gaeth on Wed Aug 27, 2014 10:59 pm; edited 1 time in total (Reason for editing : Fixed a typo in the subject)
    avatar
    Geezer
    Master Crossbowyer
    Master Crossbowyer

    Posts : 939
    Join date : 2010-01-12
    Age : 69
    Location : Austin, Texas, USA

    Re: Making my first crossbow - need to be sure it's safe

    Post by Geezer on Wed Aug 27, 2014 9:51 pm

    Making larp crossbows offers extra challenges.  I make a lot of crossbows for SCA, which has similar rules.  They allow 30 lb handbows with a max arrow length of 28 inches, which effectively limits them to @ 22 inches of power-stroke (given a 6 inch brace-height) 30 X 22 = 660 inch- pounds.  For crossbows, SCA generally allows 600 inch-pounds as an approximate equivalent.  If your LARP allows 25 lb. for a similar length arrow (28 in.) you're looking at 25 X 22 = @ 550 inch-pounds. Some LARPS specify archers must use only half-draw for close range... which isn't practical for crossbows... you really can't under- draw. So you might run into problems there... perhaps you could specify a minimum safe shooting range instead.  But that's for you to work out. I already did my time, years ago, arguing with SCA marshallate, to come up with workable power definitions.  Good luck stormin' the castle.  Geezer.

      Current date/time is Sat Jul 22, 2017 6:40 am