I've had good results when using a Weaver stance, with my Redhawk. So far, I haven't had a problem hitting an eight-inch plate at around 30 yards. Sorta slow fire, though. Iron sights. I get the same point of impact as from the bench, where I rest my hands on the sandbags and no part of the revolver touches anything.
Use whatever two-handed stance which allows you to feel the steadiest. Using light loads, work on trigger control and sight picture.
As a for instance, I've drawn a pencil line around a nickel. A .45 will cut this out of the paper in seven shots, if you're perfect. Shoot at about five yards. Or, just try to put every shot through the middle of the "nickel".
The deal is to train yourself such that you send the signal to your finger about 0.2 seconds before the sights wobble onto the exact aiming point you desire. (Same sort of deal as the Olympic shooters firing between heartbeats, insofar as control.) All of us have to deal with that 0.2-second lag between the brain saying, "Do it!" and the muscles responding.
But, sure, use a shooting stick or sticks if you want. Whatever works is by definition good. Remember, though, if you rest the back of your hand against a tree when you shoot, you can scrape off some skin! You might wear a glove with the trigger finger cut back.
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