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April 21st, 2005 admin Leave a comment Go to comments

Bass Bow
An easy way to set up a 3 pin sight on a bow?

I have gone to my Bass Pro shop and shot at 20 yards and have that pretty much right on but am needing to fix the 30 and 40 yard measurements. is there an easy way how to get my sights all lined up? thanks

The “Lewis walking pin” method.

First off, take all the pins out of the sight except two. I use red and green to make it easy. Put the red one exactly in the middle of the first vertical slot and screw it down with it exactly halfway out horizontally. That’s your anchor pin. Leave the other one in the next most forward slot and just leave it hanging loose for now.

(You’re going to be sighting your pins at 30, 40, and 20 in that order.)

Now, draw an arrow and sight that first red anchor pin right on the bullseye at 30 yards and loose it. Now, still holding your anchor pin on the bullseye, simply move the second pin, the green one, so it hits exactly where the arrow hit. Sock it down tight. That pin is now sighted in perfectly at 30 yards. Takes all of one shot, though three is advised. At 30 yards, the arrows will hit exactly on that green pin.

Do the same again for your second pin….but now use that first, green sighted in pin as your anchor. Put the sighted in pin right on the bullseye at 40 yards range and loose the arrow. Holding your sighted in anchor pin on the bullseye, move the second pin to the arrow impact point. That one is now sighted in perfectly at 40 yards.

I only use two pins….but you guys can easily adjust that to fit your fav sights. Use the red pin as your first anchor to set the green one at 30, then use the green to set the yellow at 40 etc. Go back to 20 yards and use the green as your anchor to set the red at 20 etc.

I’ve always called it “the Lewis walking pin” method. Makes zeroing bowsights a breeze and gets you shooting fast.

One fellow mentioned that the pins would be in a vertical line if the bow was set up right. Not exactly true. Maybe in the book, but not in the real world. In the real world, we all tilt our wrists….and it’s far easier to compensate with a sight than it is to retrain our grip. Helical fletching is another thing entirely. Helicals will tend to walk off to one side and fixing that with the sight is the best way. In terms of firearms, forcing your pins to stay in a straight line is like bending your rifle barrel to adjust the sight.

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