BowCast.com Archery Podcast - Bare Shaft Tuning

Bare Shaft Tuning

Written by Jason Amaro

Friday, 18 April 2008

Recently, in the fourms we had some discussion about Bare Shaft Tuning and I was asked to explain it a little more.... So here it goes.

The idea behind Bare Shaft Tuning is that you are trying to see if you arrows are correctly spined for your setup.

Before we get started there are a few things that I want to get out there:

Never shoot an arrow that has a broadhead without fletching, the results are just too unpredictable.
Tuning takes time; days if not weeks.
Bare Shaft tuning is one of several methods that I use to tune. Try them all.
When you start adjusting things make one adjustement at a time. For example; if you are hitting high and right tackle the high part first then come back and handle the arrows hitting to the right.
Before you start any tuning make sure that you don't have any "flecthing clearance" issues.
These "Remedies" are for a right hand shooter if you are a lefty will need to flip-flop the movements.
When I Bareshaft Tune my bow I start out at 10 yards and then I work my way out to about 30 yards.
I personally work on getting my elevation correct first then I work on the windage.

Needed Items:

A Target
2-3 Arrows without any fletching.
Different weight points if you have them.
Allen Key to move rest and adjust bow draw weight.
plenty of time.

The big question is; what are we trying to accomplish?
What we are basically trying to do is get our bareshafts and fletched arrows to hit in the same point. This is accomplished by moving the rest or changing the spine of the arrow shaft. Personally, I would much rather move the rest than play with the arrow spine, but if your arrows are not spined correctly you may never get your arrows to fly correctly.

Lets first look at the techinque:
What I like to do is stand about 10 yards from my target and I shoot three flecthed arrows into the target and three bare shaft or non-flecthed arrows into the target. You should be able to get a decent group from both the fletched and non-flechted arrows. The key is to really focus on form and make sure that you don't introduce any torque into the bow. You might want to try this several times to make sure that your results are repeateable. Hopefully, after a few times you should be able to see the pattern.

Bare Shaft Arrows	How to Fix
Arrows are hitting High	You can either raise your knocking point or you can lower your rest
Arrows hitting Low	You can either lower your knocking point or raise your rest.
Arrows hitting to the Right	You are Under Spined - You will need to stiffen your arrow by shortening it; reduce your tip weight ; switch to stiffer arrows; you can decrease you bow's draw weight or you can move your rest to the left.
Arrows hitting to the Left	You are Over Spined - You will need to soften your arrow you can lengthen your arrows; increase tip weight; switch to softer arrows; increase your draw weight or move your rest to the right.

For the most part Bare Shaft tuning is pretty straight forward. The key is to remember that you are not group tuning or paper tuning what you are trying to do is make sure that you are correctly spined.

Once again thanks for everything. If you have any questions send me a PM.

Jason

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