1. Take a measure tape and measure the distance from the middle of the
band slot to the center cocking tab.
2. Double the distance ( for both sides of the gun )
3. Subtract the length of the wish bone. (Alexander and Riffe's are
approx 6", Daryl Wong uses about 3".)
4. Divide the number by 3 1/2.
5. This is the length of your powerband if you are using a standard 3 1/2
: 1 stretch ratio. This is a measurement of the powerband from knot to
knot. For actual rubber length, add 1" to this length or 1 1/2" in you
are tapering the ends of the powerbands.
If you have separate holes for each band as with the newer Aimrite/Wong muzzles, then rather than measuring from the center of the band slot (you don't have a slot) to the middle tab, measure from each hole to the appropriate tab, and you will have a different band length for each hole.
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