I have a bear archery poundage scale and i tuned my bow up all the way which says on the bow 70. When i put the bow on the scale it only says 66. I have a 03 bowtech patriot single cam. Any suggestions?

i have an 05 patriot single cam and its max is 68 pounds . but i am shooting at 307 fps with it so i am happy. when a bow manufacturer says 70 there may be as much as 5 to 7 lbs of differance in draw weight. i had a hoyt raider that was a 70 lb bow but would max at 82 lbs. so i wouldnt worry about it much.

To make it more clear"the highest my bow poundage will go up to is 66 pounds(according to the scale) but my bow says it will go up to 70.

right mine says on the birth certificate thatits subposed to be 74 lbsbut itsmax out is actualy68. plus your scale may be off a few lbs.

I do agree with gonzodemon about your scale being off a few lbs.All scales are different within a lb or two.
Another thing to consider is that your string may be stretched if it has never been replaced before.This will change your brace as well.Your limbs wont have the same tension on them .
Check your A to A and brace to bowtechs specks.See if they are on.
Some bows also max higher or lower then advertised as well.
My 05 patriot is a 70# bow and maxes at 72# on my dealers shop scale.

My guess is that its pretty hard to get a bow to an exact draw weight, out of the factory. I would guess from on Patriot to the next you could have minor manufacturing differences in the limbs, string, cams, string guard / slide that could account for a varying draw weight.

Like the Labatt Blue commerical... 66lbs is Cwosh enough.