Compare 66inch limbs to 68inch limbs

[archer_thom]

Flicking through, I'm not sure anyone's addressed this point: 68" limbs are meant to be drawn to 28", 66" limbs are meant to be drawn to 27". (Hence why I need 70" limbs with my 29.5" draw). This means that a 40/68 limb will (about) measure 40lbs at 28", while a 40/66 will measure 40lbs at 27". If we then consider that a limb gains approximately 2lbs per inch of draw length, then for your bow... [26 to the button centre + about 1 1/4 makes 27 1/4" of standard draw length]

You should definitely be pulling a 66" limb, and with a 27 1/4" draw (draw length should be measured to the front of the window, much easier than button since its what the manufacturers use) you will pull about the marked poundage (the limbs minimum). Therefore if you want 39lbs it may be better getting a 38lb pair as you shouldd never lower limbs below their minimum.

To your other question, about "cast" which I believe means speed... You are currently underdrawing your bow. This is very inefficient and you will not get much energy out of your bow. Shooting a correct draw length could really improve your sight marks. However bear in mind that you are not curently drawing into a stiff part of the limb - with a shorter limb you may have to focus more on pulling through the clicker. However DON'T PANIC - as I said earlier I pull 29 1/2", (and used to pull a bit more than that) so I have a bit of a thing about limb stiffness. You probably won't notice anything.

[Nick Forster]

Yes go to 66" Limbs stay at 40lbsand enjoy higher sight marks, a flatter tradjectory and less wind influence.
With a 68" bow you are not opening it up properly hense you are not getting out ofthe limbs the full potential for that bow.
You may find that your stability will suffer at first until you get used to the new feel of the bow.
I noticed that you are shooting with QD1's , stick with a contempary quality limb (winnex, borderTXG, KG Apexs, ect)and dont be tempted to go for a cheaper limb, you are used to quite a smooth feel, now you are going to open the limb up more the potential to stack is present.
Nick

[ASW1973]

This means that a 40/68 limb will (about) measure 40lbs at 28", while a 40/66 will measure 40lbs at 27"

this is absoluteley wrong

[King Custard]

Hey Nick - (hows the guys at Nene?- I promised to come back and haven't yet)


Drooooool....winnex, borderTXG, KG Apexs - ooooooh. Yup - made the switch from Border XP10's at 38lbs to the XQ-1's at 40lb - right price- right time- wrong move!
Now who loves me enough at christmas....? it aint the bank manager I'm sure of that..lol


Looking for 40 - 42 in 66ins.....cheapo....anybody?

(Baaaaaaaaaaaaaaaaaaabe........d'ya remember when.......?)

[archer_thom]

Originally Posted by ASW1973

This means that a 40/68 limb will (about) measure 40lbs at 28", while a 40/66 will measure 40lbs at 27"

this is absoluteley wrong

How do you complain to moderators about tactless and offensive (not to mention incorrect) remarks? I know some people were suspended for it a little while ago... I would like an apology, but since that is too much to hope for I suppose a reasoned explanation of your remark and why you felt it was necessary to be so insufferable will have to do.

Anyway ASW, that is the whole point of different length limbs. What use is it for an archer drawing 29 or 27", and therefore using 66 or 70 limbs, to know what they do at 28"? The only limbs needing to be measured at 28 are 68" limbs. Furthermore I have tested (after your comment) a couple of pairs that I own and can assure you that 70/32 and 70/36 Borders Premier Carbons are 32 and 36 at 29, and that 66/30 Winex are 30 at 27. The exception is a bizarre pair of 70/38 Synerzy that are 44 at 29.

[Robert]

One thing worth bearing in mind is that for some people (and I'm one of them) even though a 66 inch bow is the most appropraite size for their drawlength (26.5) if you have short fat fingers (and I do) you may experiance some arrow pinching moments. I have lost 3 arrows to the brick wall behind our bosses before moving back to the nets. I have tried a number of fixes and if the latest one does not do it (yet another tab adjustment... should that be Y.A.T.A ???) I'm going to cut my losses and ebay my 66 inch challenger craft limbs before buying some 68 inch cheapies.

[ASW1973]

you are giving information out to others which is wrong so it seems only fair to piint this out
where are you measuring to?
All limbs are measured to the same place 1.5 inches past the pivot point irrespective of length of limbs and so this gives an industry standard. if a set of 66 40 limbs weigh at 40 at 27 inches (at this amo standard position) then they are 2 lbs heavy (suspect that limb pockets are wound up). bottom line is you measure limb poundage to the distance i have stated irrespective of limb length (yamaha limbs were the only exception to this rule and even then it was only because they ignored amo standard). this measurement means that you can actually compare limbs.

[JohnK]

Archer thom - both sets of 70in Border limbs I've owned have been the marked weight at 28in draw (to the back of the bow) according to digital scales and the calibrated scales that Border use. If a limb is marked at a particular weight for 28in you should expect it to be within a pound either side (or closer for higher quality limbs) of the marked weight regardless of the limb length. Variations in limb pocket angle, scale accuracy and so on with also throw up variations.

However, that set of Synergy limbs sound like the ones I tried once.

[rod]

Originally Posted by BorderBows

How are you getting on with them?

what were you shooting before, and whats the difference?

if i dare ask?


Sid

Sid i may be jumping the gun a bit here, since i only orderd them from you last week, i orderd 66inch #42 hex5 with hyperfoam and vx laminate. currently shooting with 68 inch #44 txg drawing 26.5 inch with 42.5lb on the fingers. of coarse i am expecting a improvement in sight marks for several reasons, when i do get hold of them i will be only too happy to post a comparisant.
cheers rod

[archer_thom]

Funny stuff. I tested the limbs with a standard bowscale (correctly re-calibrated), drawing a measuring arrow to 29", at which they read their correct weights. The limbs are in the pockets at the position Hoyt describe as the minimum. I've checked them again carefully using the exact system of ASW, and they give the same results. Could be what you were saying about limb pocket angles, but it seems a little odd.

Any thoughts?