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Technical information
for strings-cables-servings
The recommended number of strands takes into
consideration the size of the string and the
size of the serving. Another consideration,
which affects diameter, is whether or not you
leave a pigtail under the serving. For a slightly
larger diameter serving you would leave a pigtail.
If you prefer a smaller diameter then you would
start your serving, go about an inch, then cut
the pigtail end off and continue your serving.
Brownell’s recommendation for center serving
is calculated for a nock fit of about 100 thousands
which is the average nock size. You would need
a thinner diameter serving for nocks normally
used on target arrows.
Our most common serving recommendation is the
.026 for the center serving for a snug fit and
a .022 for a looser fit. If you want a tighter
fit than what the .026 gives you for the recommended
strand number then we have a new serving size
.026S, which comes in black only, and will give
you a slightly tighter fit.
For smaller cam groves or instances where there
is a close tolerance between the cam and the
limb you would want to use the mini serving.
It has a diameter of just .015 and works great
for certain applications.
For most end servings the 1-D is the preferred
serving material.
Many new traditional type bows today are using
the high modulus polyethylene string materials
but you want to make sure to check with the
bow manufacturer before using anything other
than B-50 for this type of bow. If your bow
is set up to use the high modulus polyethylene
materials the D-75 regular is a popular choice.
Brownell’s Ultra-Cam is tried and true.
If you will use this material for your cables
your days of worrying about your marks moving
or your bow tune changing are over. You can
also use the Ultra-Cam for your string, as do
many of the top pro’s. However, if you
have the issue of “a need for speed”
then you might want to use TS-Plus or D-75 Thin
for your string that would then give you a little
more speed. If you are going to be shooting
in extreme hot weather the Ultra-Cam material
can’t be topped.
Some companies pre-stretch strings before they
put them on bows. This practice is becoming
very popular and helps to eliminate the break
in period for bowstring material. Brownell recommends
three hundred pounds as a sufficient weight
for pre-stretching a bowstring. Most string
creep is due to the strands seating into the
wax that aligns the strands together in the
string bundle. Pre-stretching will speed up
this process.
Bowstring materials Recommended number
of strands
Brownell recommends 1 twist in the string for
each 2-3 inches of string lengt
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Xcel
Ultra Cam
TSPlus
D75 Thin
D75
Fast Flight Plus
B-50
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20
16
20
20
16
18
16 |
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