| Tuning Broadheads
Through
the years many articles have been written on the subject of broadhead tuning.
There are some basic guidelines to follow that have worked well for me
and other bowhunters that should make tuning your broadheads easier.
Unlike field points, broadhead tipped arrows want to fight with
your fletching to steer the arrow from the front end. If your bow is not
properly tuned, the arrow will leave the bow with a fish tailing effect.
If your arrow does not have adequate fletching to correct this, the broadhead
will take over and begin to windplane. Not only is this important for accuracy,
but also for maximum penetration. Good arrow flight is the single most
important factor which effects penetration.
Before we get into paper tuning your arrows, a few minor changes
can be made with your set-up to help make your broadheads fly truer. To
begin with, larger diameter broadheads are more critical for flight than
smaller diameter broadheads.
Also, vanes can be more critical to tune with broadheads compared
to feathers. In addition, the faster the bow the more difficult it becomes
to obtain good arrow flight. I have found that 260 feet per second appears
to be the threshold. Set-ups over 260 feet per second are much more touchy.
I also have found that a front of center balance between 10 and 12 percent
gives me the best arrow flight. Target shooters may be able to get by with
less than 10% FOC balance but for us average shooters, anything less than
10% can be touchy.
I like to begin paper tuning my arrows with field points. The
arrow shaft company, Easton, makes an excellent chart to help with our
paper tuning effort. I have found that if I get my field points to tune
well through paper, I almost always get my broadheads to fly well.
If you want to take it to the next level, you can repeat your paper tuning
process with your broadheads.
Randy Ulmer, one of Rocky Mountain Broadheads famous staff shooters
believes that , "By tuning the bow to shoot a bullet hole through
paper, you are minimizing the job the fletching must do allowing the arrow
to get off to a good start. The first 20 feet the arrow travels is critical
in determining final arrow performance."
Jackie Caudle, another staff shooter for Barrie Archery believes
that a slight high left tear for a right hand shooter is optimal.
As you can see, even the top shooters have their own special system
to setting up what they feel is the best for them. The point is,
you want to eliminate any erratic tears when you tune through paper. By
doing so, you will have a much better chance of getting your set-up tuned
for broadheads.
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