french tuning - of any value for recurve ?

[pHz]

assuming you have arrows matched as well as you can ?

slainte : rob

[geoffretired]

French tuning ,if I remember correctly, is a walk back method but you cut out most of the intermediate distances.You shoot something like 70m and possibly 30m. I think the idea is that if they are ok(left/right) the ones between should be. 90m/ 100y should have no reason to go off to one side either.

[pmiddl]

that sounds like what i do, shoot 18m, then set sights for 90m and shoot that, hopefully left/right alignment should be good. then i dont worry about anything in between

[pHz]

from NYBOWHUNTER.COM: Modified French Tuning -

Friday, April 25, 2008
Modified French Tuning

I recently discovered my new favorite way to tune my bow - French Tuning. Forget shooting bullet holes through paper and walk back tuning, when done properly French Tuning will be easier and can be done in your basement as long as you have 10 yards to shoot.

The problem with paper tuning is that any slight variation in your hand will cause your arrow to impact the paper differently and the tear to change. Remember paper tuning and walk back tuning are just a start before broadhead tuning, once you get your bow dialed in here and it's shooting "perfect" it probably won't be perfect with your broadheads so more tuning will follow this.

I first read about French tuning on the Archery Talk Forum and after doing some walk back tuning of my own I was able to fine tune my bow even more with French Tuning. The best part is that I have 15 yards to shoot in my basement range and with French Tuning you only need 10.
The first thing you need to do is get a weighted piece of string and nail it to the top of your target or hand it from the top of your target stand. The weight will hold the string down in a perfect vertical line and this is what you will be shooting at.

Back up about 3 yards and start shooting three arrows at the string then adjust the windage (left/right) of your sight until you literally hit the string with you arrows. It is possible and will take awhile. Once you're dialed in on the string its time to go back to ten yards.

At ten yards shoot at the string, but this time adjust your arrow rest center shot (left/right) until the string splits your 3 arrow group in half. Once your 3 arrow group is split in half by the string from 10 yards it's time to go back to 3 yards.

Again, aim for the string and shoot your arrows at it adjusting the windage on your sight pins until your arrows hit the top of the string. Once you achieve this go back to 10 yards and adjust your center shot until your group is split in half by the string. Continue this process until no adjustments are needed and your arrows will not only be flying exceptionally well, but you'll be ready for broadhead tuning which shouldn't take too much time after this.

For some visuals on Modified French Tuning check out this thread on the AT Forums.

Posted by Marc

and more here with pics - French tuning / BH tuning - ArcheryTalk

now i realise theyre talking compound but assuming your arrows are matched and substitute 'button centreshot' for 'rest centreshot' ?

slainte : rob

[King Custard]

IMO this sort of french tuning - ie: at just two distances is just not good enough for recurve....unless you only shoot the same two distances in competition.

It is only too easy to beleive that cos you hit tens at 20 yards and nines at 100 yards ( or whatever) that there is no distance in between where you're hitting fine groups of blues or worse!


A simple walkback test that shows a drop of arrows - 'C' shaped in either direction may well have your first highest arrow central...and your last arrow central too .... but those in between ie: that correspond to the distances in between can be way out of central on the boss.
This indicates , normally, a dodgey button body position - that you'd not notice if you only shoot the two distances....

not notice, that is, until you have a fine longer distance score -a poop middle distance score ( cos your grouping isn't cental on the boss)- and a fine short distance score.
I'd advise that a walkback is the only way to be certain that you are shooting 'down the line'....I do mine from 20 to 100 yards on as windless a day as I can ...and 'allow' ( through experience) for any small draught if - as usual- windless days are few and far between.

I was under the impression though that two distances is fine for compounds as they have 'no' (?) horizontal paradox to eliminate

[madbirdwomen]

Read this article on french tuning by John Dudley - Did it a few times.

http://www.dudleyarchery.info/articles/usarcher1FT.pdf

[John (OSF)]

I just find my group centres at all fita distances and adjust button in/out & pressure until the are all below each other (ish) ..
I'm not in favour of FT because strange things can happen between 90 & 30 and think you have to check the distances you shoot

[geoffretired]

Having read the other posts in this thread, two things strike me as important enough to try to get some clarification.
One; I would not necessarily use paper testing to tune a bow for groups but I feel it is worth noting that paper tears at 5y or so can help archers who are having problems with hand postion in the grip. If the tears vary in shape it is possibly showing a variation in hand position; this is not good.
Two; if the arrow is neither left nor right of center at 70m and at close range, why would the impacts be off centre at the in between distances? That would mean arrows flying along a curved path(curved left to right or right to left) I am not saying this cannot happen,I am asking how it is possible in still air. This has bugged me for some time, as it seems unnatural.

[John (OSF)]

I've never seen the point in wasting time on paper tuning a recurve.
I am willing to listen to anything that might change my mind though

I've had arrows do all sorts of strange things at different distances due to button in/out & pressure

[pHz]

Originally Posted by John (OSF)

I've never seen the point in wasting time on paper tuning a recurve.
I am willing to listen to anything that might change my mind though

nah dont bother - keep your ears shut to recurve paper tuning

(based on my own experience and the valued opinions of those who know better than me)

slainte rob