There are some good tips here about this. Here's my tip. I find it almost impossible to hold steady on target, expecially at longer ranges. When competing in High Power, my sights usually swing left to right with my breathing. For my bow, I can almost eliminate the left-right movement but then I get up and down. I set my pins under the bullseye and then as I let my breath out, I slowly raise my sights. When I have let out about 90% of my breath, the pin is on the bull and I release. I find it easier to slowly move my sights onto the bull than to try to hold them on it. I know no one that can hold any weapon rock steady from the offhand position. With practice you can be more steady but more importantly, your brain gets conditioned when to release the arrow/pull the trigger in relation to the small movements of the sight.

Arthur P, that is pretty interesting information. I have always been told that you want the tiller measurement to be equal. I'm guessing since you have been doing this for 25 years that this causes ill-affects? Just curious before I try it out. Thanks.