10.01.2020 Views

Shooting Selfbows

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

BowBuildingSchool.com


Imprint<br />

Publisher and owner:<br />

Matthias Wiltschko<br />

Gross Gundholz 25, 3920 Gross Gerungs, Austria<br />

www.BowBuildingSchool.com<br />

Publisher and media owner takes no legal responsibility or liability.<br />

All rights, copying, distribution and translation rights are with the<br />

owner and publisher.<br />

Text, translation and layout: Matthias Wiltschko<br />

Photos: Rupert Pessl, Matthias Wiltschko<br />

No legal responsibility or liability for injuries and damage to property<br />

of the customer/reader and third parties is taken over by the information<br />

provided and by the objects produced therefrom (eg bows, arrows,<br />

tools . . . ). Each customer/reader is responsible for his/her own safety<br />

and safety in dealing with his/her bows, arrows and tools. It is at the<br />

measure of the customer/reader to assess and avoid dangerous situations<br />

with bows, arrows and tools.


<strong>Shooting</strong> <strong>Selfbows</strong><br />

Every person is unique: physique, muscles, posture, flexibility, eyes, depth<br />

perception, mental attitude . . . We have to find a shooting style that best<br />

suits our disposition.<br />

Maybe you already thought of it when you read the headline, that your<br />

40# selfbow needs a new set of arrows that is even better tuned and<br />

the spine of the shafts is not 35# this time but 36#, because the arrows<br />

have been hitting a little too far to the right. You are already on the right<br />

track and have your bow under control, but there are basic adjustment<br />

screws you need to consider that prevent constant and never-ending<br />

tuning of the arrows and the bow right from the beginning.<br />

It’s no fun if you are constantly questioning your arrows and your bow:<br />

shortening arrows, increasing tip weight, extending<br />

arrows again with foreshafts, then again reducing<br />

tip weight, changing the brace height of the bow,<br />

moving the nock point, changing the anchor point,<br />

changing arm position, adjusting the pressure point<br />

on the bow, changing the pressure point in your hand . . .<br />

Above all, the consideration of the most<br />

important basics should protect you<br />

from dead-tuning your motivation.


There is no tuning and shooting technique panacea, however<br />

the foundation always remains the same. The listed tuning tips<br />

and shooting techniques show the most important aspects that<br />

helped me to shoot more consistently.<br />

and<br />

There are many books written about this topic.<br />

No matter what sources you use, always pay<br />

attention to only change one factor of<br />

your shooting style, your bow or your<br />

arrows at one time and gauge the results.


Instinctive / Intuitive<br />

Paul Comstock searched for the inventor of ‘Instinctive Archery’ and was<br />

able to date this term at around 1934.<br />

With this shooting technique, no aiming aids like the arrow tip or<br />

pins are used on the bow; only the view with both eyes on<br />

the smallest possible target point is applied.<br />

It should be noted that one pin set at hunting distance is not<br />

heretical, but appropriate for a clean kill.<br />

It makes a big difference if you only shoot for fun at<br />

targets or 3D animals, or if the bow and arrow are<br />

actually used as lethal hunting weapons:<br />

The animal has to be killed quickly!


There are no rules for aiming aids on selfbows; everything is allowed to<br />

increase the accuracy of the shot. The arrowhead can be used<br />

to facilitate horizontal aiming or a pin mounted on the handle<br />

can be utilized to mark the exact impact of the arrow at a<br />

certain hunting distance.<br />

Aiming guides provide security. Some people feel<br />

most comfortable in fixed structures and achieve unmatched<br />

performance here. Others need to stay dynamic<br />

and need the possibility to adapt flexibly to new<br />

circumstances to be able to react accordingly.<br />

All aiming aids, the best intuition and the sharpest,<br />

most rigid look at the target are worthless if the<br />

draw is not constant and you shoot with poorly<br />

matched and tuned arrows.


Paul Comstock:<br />

“Sometime around 1934 the term, ‘instinctive‘ was created not because<br />

it appeared in print at that time, but because that marked the very beginning<br />

of the National Field Archery Association, which grew bigger<br />

and bigger in the following years and promoted ‘Instinctive <strong>Shooting</strong>’<br />

heavily -- at least until fiberglass bows appeared.<br />

One-time NFAA secretary John L. Yount in 1974 wrote a history of<br />

the group’s origins, which I found online. A goal, Yount wrote, “was to<br />

promote a shooting style, ‘Instinctive’ that would greatly increase the<br />

number of archers.”<br />

If we think a minute about what he wrote, he is literally saying the ‘Instinctive<br />

Archery’ concept would ATTRACT lots of new archers. He did<br />

not say ‘Instinctive <strong>Shooting</strong>’ would make the new archers accurate<br />

shots. ‘Instinctive’ seems to promise accurate shooting without having<br />

to do a lot of thinking.<br />

The creation of the term was absolutely a reaction to and an attack on<br />

the methods used by the National Archery Association, whose members<br />

included very accurate and deadly bowhunters such as Pat Chambers<br />

and Cassius Styles.<br />

The methods of the NAA would have been confusing for novices for<br />

several reasons. For example, no one could become proficient at NAA<br />

methods without directly interacting with NAA members, including those<br />

who were archery coaches. Not everyone<br />

could do that.<br />

Also, there were competing schools of thought in the NAA, such as ‘relaxed’<br />

vs. ‘nonrelaxed’ which were competing ideas in the 1930s. Even<br />

those terms are confusing, because ‘relaxed‘ in reality referred only to<br />

a bent elbow of the bow arm, and ‘nonrelaxed‘ referred only to the bow<br />

arm extended and locked at the elbow.<br />

Unless archers were directly exposed to the NAA, trying to figure out<br />

NAA methods was a mess, a real headache . . . a pain in ass! Yount<br />

and others wanted to start over with something new, and ‘Instinctive’<br />

was the best thing they could think of.


The Pillars of Selfbow Tuning<br />

1 - Long Bows<br />

Man-sized or longer bows store more energy than short bows due to<br />

the lower string angle. The long limbs act like stabilizers and make<br />

constant shooting easier. Even with a slightly shorter draw, the stored<br />

energy and trajectory change only minimally. Short bows are more nervous<br />

and more difficult to control. Due to the disproportionate increase<br />

of the draw weight towards the end, even a small change in the draw<br />

length has a strong impact on the vertical hit accuracy.


2 - Light-Weight Tips<br />

The ends of the bow must be made as narrow and light as possible to<br />

keep the limb vibration and hand shock low. At the same time, lightweight<br />

tips increase the arrow speed enormously and thereby improve<br />

the vertical hit pattern over long distances.


3 - Light-Weight Bow Strings<br />

The lower the mass of a bowstring, the faster the arrow will be. Too<br />

thick, heavy and tightly twisted strings slow down the arrow speed and<br />

it is more difficult to hit at greater distance.<br />

Does your bow have severe handshock when using thin strings? It<br />

shows you that the tips are too heavy or the main bend of the limbs is<br />

too close to the handle; the outer limb areas do not participate enough<br />

in the overall bend and must be accelerated as dead weight. The energy<br />

required for this is no longer available to the arrow.<br />

The tips, which have too much mass and<br />

the bowstring, which is too tightly twisted<br />

and heavy, slow down the arrow speed<br />

and worsen the shooting comfort.


4 - Brace Height<br />

For selfbows, a brace height of 6 inches measured from the back of the<br />

bow provides a good compromise between accuracy and arrow speed.<br />

If the brace height is too low, the arrow must wind itself more around<br />

the handle when shot. This makes it more difficult to match your set of<br />

arrows and worsens the horizontal hit pattern. The arrow speed only<br />

starts to drop below a brace height of 4 inches. If you design your bow<br />

long and wide enough, you can use a brace height of 8 inches without<br />

overstressing the limbs and causing stringfollow. The arrows are then<br />

slightly slower, but are released more cleanly from the bow.


Arrows<br />

As already mentioned in the foreword, you shouldn’t get lost in the fine<br />

adjustment of the spine value without first taking other fundamental<br />

aspects into account.


Cylindrical, Tapered, Barrelled<br />

The cheapest and easiest to organize shafts are of conventional cylindrical<br />

shape. Tapered shafts whose diameter decreases towards the<br />

end of the nock are released more cleanly from the bow when shot. Barreled<br />

shafts have the largest diameter in the middle or in the front half<br />

of the shaft; these shafts also stabilize faster than cylindrical ones.<br />

In the latter two, however, it is important to pay close attention to the<br />

end at which the shaft is shortened, otherwise they have different mass<br />

distribution and spine.<br />

Why do I only use cylindrical shafts? I have hundreds of 5/16 and 11/32<br />

nocks in stock, but tapered and barreled shafts are 1/4 or 9/32 inches<br />

in diameter at the back end.<br />

Plastic nocks are really cheap and not a valid reason for preferring to<br />

use cylindrical shafts. When selecting my shafts, I don’t want to have<br />

to commit to only one manufacturer, on whom the quality of my arrow<br />

flight solely depends. I always try to use standardized products with my<br />

arrows to ensure reproducibility for myself and my readers.


Arrow Length<br />

Why talk about the length now when the arrows are not even finished?<br />

If you shorten your arrows exactly to your draw length, the spine value<br />

and the tip weight have to be meticulously adjusted to achieve a constant<br />

hit pattern. The shorter the arrow, the higher the bending stiffness,<br />

i.e. the spine value.<br />

So it may be that you need arrows with a spine of 36# for your 40# selfbow,<br />

so that they can wind themselves cleanly around the handle when<br />

shot. Short shafts with a spine of 40# would be too stiff and would hit a<br />

target to the left of a right-handed shooter or hit hard on the side of the<br />

bow’s handle area.


If you leave your arrows 4 inches longer than your draw length, then a<br />

large part of the shaft is in front of the bow’s back right from the start of<br />

the shot: this part of the arrow is already aimed at the target and stabilizes<br />

the flight.<br />

The longer the shaft, the lower the bending stiffness, the spine. So you<br />

could use 32” shafts with a spine of 40# on your 40#@28” selfbow and<br />

the arrows hit exactly in the middle of the target.


Tip Weight<br />

The higher the mass of the arrow tip, the more flexible the shaft becomes:<br />

the spine value is therefore reduced. If the arrows hit too far<br />

to the left (right-handed shooters), increasing the tip weight can move<br />

them to the center.<br />

If the shafts are too flexible and the arrows always move to the right,<br />

the reduction of the tip weight increases the bending stiffness, the spine<br />

value and moves the hit pattern to the left.


So before you start shortening long shafts because they have too little<br />

spine for the draw weight of your bow, reduce the tip weight from<br />

100grain to 70grain and check the arrow flight again.


Feathers/Fletches<br />

The longer or higher the feathers are, the faster the arrow stabilizes in<br />

flight, but the faster it loses speed.<br />

The fletches can be glued slightly twisted onto the shafts to increase<br />

rotation and stabilization. However, the fletches must be glued absolutely<br />

evenly, otherwise the hit pattern deteriorates again. I never use<br />

twisted feathers on my arrows because the shafts must fit the bow well<br />

from the start and have to be matched to each other so that every one<br />

of them flies straight even without fletches.<br />

Long fletches also require an increase of the bow’s brace height, otherwise<br />

they would always rub against the handle when you nock them.<br />

Very high feathers are thin and sensitive. High fletching can also create<br />

a whistling sound which will scare off wild animals; 3D foam animals<br />

are unimpressed by that sound.


The stabilization windings under the nock look nice, but they are poisonous<br />

for the arrow flight. The narrow turns of the glue soaked thread<br />

have a high mass and shift the center of gravity further backwards.<br />

Even without windings, I have never broken a selfnock.


In the case of self-cut feathers with long ends, care should be taken to<br />

ensure a greater distance to the nock of the arrow, otherwise they will<br />

rub against the fingers.<br />

After years of testing, I realized that for my shooting style and the shafts<br />

I used, straight glued-on 4” shield fletches represent the best compromise<br />

between accuracy and arrow speed.


Colors<br />

The brighter and more visible the fletches, nocks and shafts are, the<br />

better. This is the only way your brain can quickly grasp the arrow flight<br />

and make fine adjustments for the next shot.


Nock Point<br />

If the arrow is exactly horizontal or at right angles to the bowstring at<br />

brace height, then it will hit the back of your hand or the arrow rest hard<br />

when being shot.<br />

Move the nock point up a little and the problem is solved. This also<br />

eliminates “riding”, the up-and-down movement of the arrow in flight.


<strong>Shooting</strong> Sequence


After stringing a selfbow it MUST be<br />

warmed up carefully. Slowly, the bowstring<br />

is pulled in several moves until<br />

you reach the full draw length. A selfbow<br />

should never be brought to full draw immediately,<br />

or be pulled wildly and hastily<br />

to be warmed up.


With thumb and forefinger,<br />

an arrow is pulled<br />

out of the quiver held<br />

by the nock and . . .


. . . then the arrow’s tip is<br />

guided forward UNDER<br />

the bowstring along the<br />

back of the hand or the<br />

arrow rest.


As the nock approaches the<br />

bowstring, move it between<br />

your index and middle finger<br />

and you can instantly nock<br />

the arrow: you are ready for<br />

the shot immediately.


With your thumb you now<br />

close the index and middle<br />

finger and thus form the<br />

snap link grip.<br />

The string rests exactly<br />

in the first finger joint.


Are you skeptical that you cannot<br />

release the string properly with this<br />

type of grip?<br />

Since the thumb forms the lock and<br />

the string lies in the first finger joint,<br />

the index and middle finger are<br />

loose and under minimal tension.<br />

As soon as you relax your thumb,<br />

the string will snap over your loose<br />

fingers and the release can no longer<br />

be disturbed by a cramp.<br />

With this method you achieve<br />

a more constant release and a<br />

smoother arrow flight.


The snap link grip allows you to relax your wrist and ensures that you do<br />

not kink the string or pull it away sideways from the bow.<br />

Tab or glove?<br />

I have been using the<br />

thickest shooting glove I<br />

could get since 2007. Thin<br />

strings do not cut deep<br />

into the leather and glide<br />

faster over the smooth<br />

surface.


The pressure point in the hand<br />

should be close to the root of<br />

the thumb; this prevents you<br />

from twisting the bow and the<br />

limbs are evenly stressed.<br />

Also make sure your elbow<br />

is facing outwards. There will<br />

be a little bend in your elbow,<br />

but always try to keep it at the<br />

same degree.


Here the handle of the bow<br />

rests in the entire palm and<br />

the wrist is bent upwards. If<br />

your bow is too strong, this<br />

might be the only posture for<br />

you to shoot it. Nevertheless,<br />

try to shift the pressure point<br />

to the root of the thumb.<br />

The elbow is pointing down; it<br />

is locked in and the bowstring<br />

grazes the forearm with every<br />

shot. Try to let the elbow face<br />

outwards.


When the bow is brought upwards,<br />

it is pulled to half its<br />

draw length.<br />

Your eyes and the arrow are<br />

facing at the target . . .


. . . Now the bow is drawn to the anchor<br />

point, with the last inches of the draw performed<br />

very slowly.


To ensure a constant draw<br />

length, it helps to determine<br />

the anchor point of<br />

the string directly above<br />

the eye.<br />

Of course you can also<br />

choose your cheek as<br />

an anchor point.


Visualize how your back tension builds up in one line with the arrow<br />

and the target as you draw.<br />

As soon as you reach<br />

your anchor point, the<br />

string is released. The<br />

draw hand is pulled<br />

back to the ear and you<br />

remain in this position<br />

until the arrow hits.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!