An incredibly easy way to measure the actual draw length of your bow is to use a “draw arrow”. These specials arrows are easy to build and can be used on any bow. Here’s how it’s done…
Step 1 – Gather Materials
All of the materials that you need are probably scattered around your house already. Grab your bow, an extra arrow, some painter’s or masking tape, a tape measure (or bow square, if you have one), a marker, and a friend.
Step 2 – Measure Brace Height
Step 3 – Mark Riser
Step 4 – Mark Arrow At Full-Draw
Now you need your friend. Nock your taped arrow and come to full-draw. Have your friend mark the arrow at the point where it intersects the piece of tape that we added to our riser.
Step 5 – Measure Arrow
Step 6 – Calculate Draw Length
So, for the bow that I’m working with, we take the measurement of 28, add 1.75, and get 29.75″. The AMO draw length of my bow is 29.75″.
To complete your “draw arrow” and make it reusable and compatible with any bow, make additional marks every 1/4″ out from your original mark. Write the whole-inch numbers on the applicable marks – you’re trying to re-create a “ruler” on your draw arrow. Remember that the numbers are measured from the throat of the nock, out to the marking that you’re making.
Now you not only know that actual draw length of your bow, you have also built a “draw arrow” to use with any other bow. Simply find the brace height measurement of any bow bow, mark it on the riser, draw the marked arrow, see where it intersects, and add 1.75″ to the number to get the AMO draw length of that bow.
Questions? Fire away!…