Riser length ?

[wisconsin wood butcher]

I bought a set of Tt Ilf 50#longbow limbs on here last week and they are on a 21"gamemaster  riser and the bow is 66"s 65/ 66 #s at 30"s the  guy had them on a hoyt riser 19"s i believe.
  my questions are where can iget a shorter Ilf riser? how short can i go for a 30" draw 14-17?
   its kinda fun to play while i save for an O.L.
   

[Pete W]

Something doesn't seem right.
 As the riser length increases the weight should be going down. The longer draw from the std 28" should gain 2#/inch.
 You gained 15#  with 2 1/2" more draw and a 2" longer riser than the limb was made for. It should have ended up very close to the same weight as the limb is rated for. The wood glass limb is made for the 19" Pinnacle.
 The Master Carbon limb is made for the 17" Titan. I assume you have the wood glass limb.
 The gamemaster is not an ILF riser, so I asume you have changed out the limb bushings to fit your riser.
 It seems like you have the limb bolts screwed in to far and the limbs are being over stressed.
 On ILF risers there is a bushing on the limb bolt that prevents it from being turned down to far . It seems like the game master does not have this from the weight gain you say you get.If it does have a bushing it should be longer for the ILF limb butt.

You can shoot those limbs from a 17" or 19" ILF riser with no problem. They shoot and draw good on the Titan and Pinnacle Risers out to that draw length when you set the pre load  for the long draw length.
 The ILF limb is not designed to max out the draw weight and pull a max draw length.
 They are adjustable so that you can set the pre load to have the limb just start to stack at the end of your draw .This is where a limb will be most efecient.
 It also allows you to have the same bow/limb combination make 50# at 28" and 50" at 30". They also make ILF limbs in diferent lengths to acomodate diferent draw lengths. A 26" draw will take a short limb, and a 30" draw will take a long limb and keep the limb within its rated range at the apropriate draw length.
 Consider the  limb bolt adjustment as draw length adjustment, not draw weight adjustment as it's primary function.
 Morrison risers are made down to 14" and you will need to ask Bob about the mini 14 and those limbs. Bob uses diferent limb pad angles to allow for the short risers and longer draw lengths.

 For a shorter riser you can get a Trad Tech Titan or a Das 17" riser, trad tech pinnacle wood 19" , Morrison 14 to 16?", or you can Warf/ Convert some of the old recurve/compound metal risers. I just did a couple 20" Hoyt TD3's.
The top riser in the top photo is original the bottom is the finished product.
 

 

 Pete

[wisconsin wood butcher]

thanks pete.. what little i understand now.. i believe my standard hoyt gamemaster riser with these longbow limbs neither are  Ilf now from what i just read. have increased weight gain because the riser is longer [more leverage?] so i need to get a  riser or convert my riser to Ilf to get a 64"to 66" 50# long bow . now what of these warfed 20" riser where did you get your info for those. do you think they would get me the longbow im looking for?

[Pete W]

A longer riser should reduce the weight . I don't think you need to get a new riser.
 You have a PM coming.