Found this on another site. How To: Measure YOUR Length of Pull
Adjustable stocks, butt spacers, differing sizes of recoil pads, all sorts of ways to make a rifle stock longer, or shorter if necessary, but how do you know what size you need?
The internet has become a powerful tool to every informed shopper on the planet. With a few clicks, you can find just about anything you are looking for, and in most cases, save yourself some money in the process. While this is a great thing for do it yourselfers, it also leads to sometimes making less informed decisions as you don’t have that “hands on” that you do in a store or shop environment.
Rifle stocks are one such category so here I will show you a very easy way to measure your length of trigger pull to insure that, should you want to, you can order up a stock for any of your weapons that will be the right size and fit for you.
Standing straight up, with your arms hanging at your sides, you need only to bend your arm at the elbow to 90 degrees to the front.
How To: Measure YOUR Length of Pull - General Rifle Discussion
Keeping your wrist straight & in line with your forearm, now make an imaginary pistol style grip with your hand. Curl your finger into a natural trigger position.
Now, using a tape or similar device, measure from the inside of the elbow, just below the bicep, straight down the forearm to the middle of the pad on your trigger finger.
How To: Measure YOUR Length of Pull - General Rifle Discussion
How To: Measure YOUR Length of Pull - General Rifle Discussion
How To: Measure YOUR Length of Pull - General Rifle Discussion
You now have the measurement for your length of pull on a rifle stock. 13.50” is the standard length of pull for a US made rifle stock. If you are over that number ( like the person in the picture ), you need a longer stock. If you are under that number, you need a shorter stock. If you live, or are going to operate/hunt, in a climate that is extremely cold, needing heavier clothing, subtract 0.25” from the measurement to offset for the difference when that clothing is put on.