I grew up reading Elmer Keith and his tales of long range sixgun shooting. After I got my first .44 Mag , a Super Blackhawk , I decided to try it. With a length of 1/4" steel cable , I hung the cut-out top of a 55gal drum , painted bright orange , from a tree at the top , down the wall of a quarry. I picked a good spot across the way , sitting back against the opposite wall with the gun resting between my knees , (rangefinder said 375yds) and would spend hours throwing hundreds of rounds at that thing. (Also why I started reloading.) I could hear an occasional hit clear as a bell and with time and practice , the hits got more frequent. I eventually got into the early classes of IMSHA shooting. But these days , my eyes are limited , even with glasses to about 100yds.
A friend up the Poconos has a 12in dia , 1/2in thick steel gong hanging 100yds from his back porch. We spend lots of time and ammo , ringing that gong with our .357 , .41 and .44 mags.