Piking

[SMeeres3030]

Has anyone had experience on Piking a bow? Is there any formula 1" = x(lbs)? I'm wondering because I have a 68" bow for my wife that ended up filleting good @ 27lbs instead of the desired 35lbs. Thanks guys I will leave this to you!

[osage outlaw]

How long is her draw length?   68" is pretty long for a girls bow.  I would think you could cut several inches off. 

[bluegill68]

There is an equation in TBB Vol 1.

[George Tsoukalas]

Yes, Jim Haam gave a nice equation in TBB 1 but you can gain about 5# for every inch removed from each limb.
What is your wife's draw length?
Jawge

[mikekeswick]

1% limb length = 5% weight gain.

[SMeeres3030]

Her draw length is 26.5"

[mspink]

I have had experience piking on many occasions. Dividing the weight you want (50lbs) by the weight you have (45lbs) will give you a decimal figure, lets say 1.1111. subtract 1 from it or simply take away anything to the left of the decimal leaving you with .1111.  divide .1111 by 5 you get .0222. multiply this figure by the bows length which is lets say 68". 1.51
1.51 is the total inches needed to take of the bow. divide by 2 and its the inches needed to cut off each limb. Has worked for me countless times.

[bradsmith2010]

you can also tie on a temp string nocks  and adjust that till you get the weight you want,, I am not good at calculations,,

[SMeeres3030]

Thanks guys I did pike it 3.5" on each side and the steamed the lighter limb and heat tempered it. It's now nice and stiff with lots of tillering to work with. I will have to post some pics when it's finished.