Sight extension distance...

Originally Posted by Max

Geoff - I think I begin to see what is happeing here (having been lurking on RGS's post with interest). This sounds like torque applied while still at full draw (as opposed to torque reaction after loose caused by poor grip or alignment), so in effect pushing the riser to one side or the other and moving the string out of alignment with centershot. So you are in effect aiming off without knowing it? So if I understand what James Park is suggesting, there is some null position at some distance out from the riser that the scope needs to sit to compensate for a particular archer's torque effect?

Max, having read the text again, I reckon you have hit the nail on the head! The tricky part is getting the extension out far enough and still be able to reach 90m. It also possible to over do it and introduce an advers effect. Mr Park sets his extension at a whopping 200mm. I doubt I will be able to do this with the heavy X10's, so I see a compromise may be needed.

[grantwomack]

Originally Posted by geoffretired

They are coming down in price I believe!!!!£500,000. They'll be in my price range by 2197. That's a lot of birthdays.

There are several models available for under £3000. That's still a lot to spend on essentially a tuning aid, but it's a lot cheaper since the digital age started.

[Little Miss Purple]

I keep reading this thread over and over but I just don't get it!!!! You boys are too technical with your toys

[grantwomack]

Oh, and back on topic, I set my sight as far from the bow as it will go, provided I can still reach the target. Then again, I am talking about a recurve...

[Medoc]

Techno Techno Techno........................why not just shoot? I am sure that tourquing the bow doesnt cost too many points.

[LineCutter]

Originally Posted by grantwomack

Oh, and back on topic, I set my sight as far from the bow as it will go, provided I can still reach the target. Then again, I am talking about a recurve...

I've got mine one stop less than fully extended, so that I can get 18-90m without changing the extension. ISTR that this was thought to be a good thing (for tuning reasons, & not just 'cos you'll eventually forget to change it when you change distance), but I can't remember the exact argument now.

Originally Posted by Medoc

Techno Techno Techno........................why not just shoot? I am sure that tourquing the bow doesnt cost too many points.

You have been shooting near on 30 years Mark. I have been shooting less than two. I have lots of questions about the techniacal stuff that I find interesting that's all. Each to there own. What is more, I need all the points I can get..

I am not good at just 'doing' I like to know 'why?' I would be crap in the army!

[SLOWHAND]

I'm with Grant on this, I always have my sight out as far as it will go (quite a long way on the spig carbon). I believe that by doing this you have a finer ajustment both in aiming and in windage/elevation ajustment . The only time I have to bring the sight in is when shooting a Portsmouth, the ring on my sight is a little too small to get the whole of the gold in at full extension.

[Jerry Tee]

I cant see how a sight can do more than a long rod can besides the sight I have has the elevation on the riser not on the end of the extension and that means very little mass at the end of the extension.

[Marcus26]

It's not the mass of the sight that makes the difference, it's the location.
For those who can't be bothered clicking the link.

Sight your bow in at indoor (or 20m outdoor)
Shoot one shot normally into the centre
Now torge the next shot hard to the left by twisting the riser
Now do the same to the right

You should get three shots like this

X X X

Now move your sight out or in untill you can group all three arrows by repeating the process.

Interestingly enough the same process works with arrow rests. In playing with a PSE Scorpion it was found the rest could be placed so a bullet hole was achieved no matter how much torque was applied.