Nothing. The key to shooting a handgun over anything other than a table rest or backpack is supporting your elbow/forearm and your leg if you use it. Hard to do both laying on the ground. Leg and arm are unstable, flopping around just a little, but enough to throw short barrel shots off.
. I tried the traditional wood tripods on my first Africa trip. My elbow/forearm waved like a flag. Missed a couple animals.
A trip to SSK early in my career found me shooting JD's XP in .458X2 a la Keith. Did not work. I figured supporting my elbow on the ground would work. Thought I broke it on the first shot.
The three positions that work for me:
1) regular offhand, with lots of practice. Push with the right hand. Pull with the left. I routinely hit a 110 yd. rock at my range with all my revolvers and single shots including .416 Taylor and .500 S&W.
2) Primos tripod shooting sticks WITH the short arm rest(this attaches to the trpod). Rest the forearm of the gun on the rest and YOUR forearm (the middle) on the short arm rest. Good for 2-250 yd. shots.
3) BogPod with PSR rest (not made any more, but look around for the rest). This is an unbelievably stable rest. I used it on a CO mulie at 188, a AZ Coues at 266, and a WV deer at 581(not a misprint).
This is probably more info than you wanted or asked for. 39 years of handgun only hunting has taught me this. None of us are in the league of Elmer. He did what most earthly beings could not accomplish.
Hope this helps a little.
