I have an Olympic Recurve student (who switched from compound) who is currently building his shot. Besides being a delight to work with, he is bringing up questions us coaches should be able to answer. One of those is “how much draw weight do I need?”
I am in the camp of “as little as possible for most recreational archers” as “it ’posed to be fun, bro.” But here is the answer I sent back to him.
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As to what draw weight to settle on, you are looking for something you can handle. Our goal is to shoot our last arrow of a competition as well as we shot our first arrow, so too much draw weight creates fatigue that foils this goal. You also want it to be as high as possible (while meeting the other criteria). This is because the higher the DW, the flatter the arrow trajectory and the closer to “indoor form” we get. Young archers experience the problem that because of their short DL and low DW it means that at longer distances, they have to hold their bows at fairly steep angles, which distorts their form and results in their sight aperture being above the target face. We would rather not to have to distort our form so much and we would rather have our aperture line up somewhere on the target face for consistency (e.g. 12 o’clock—7-ring, dead center is even better).
Unless you are ferociously competitive, something in the mid-40’s would serve you well for all applications. There are some people who only compete indoors and so only shoot 18 m and 20 yds. They do not need much DW at all. Just enough tension on the bowstring to get off of it cleanly. If you plan on competing outdoors, pick your longest distance and see if you can sight in on the target, that is get a sight setting with your aperture somewhere on the target face. If you can you are good (enough) to go. If you cannot, and you can handle a higher DW, that is your solution. Many people find such a spot at the mid-30’s to higher 30’s of pounds of DW. (Cast depends on a lot of variables, one of which is draw length, another being arrow mass.) This is the gift given us by the creators of lightweight, stiff all-carbon arrows. If you cannot handle much draw weight, then all-carbon arrows are part of the perfect solution. Having less mass they accelerate to fairly high arrow speeds at low-ish draw weights.