I shoot in a local bullseye league.We have four ranges.One of them is indoors,and periodically the pits below the butts get full enough with lead that we started getting occassional richochets.
The solution to this problem,aside from closing down the range periodically and cleaning out several tons of lead in the traps, was to hang 1/4" thick rubber curtains in front of the metal louvers that deflected the bullets downward.
Even .357 magnum and .45 bullets do not come out of the traps with enough energy to penetrate that loosely hanging 1/4"rubber curtain.
When we had those ricochets (and ,at worst,there were very few) before the curtain was installed,those same bullets always came back below the knees of the shooters on the line and hit just about hard enough so that you knew it had happened,not hard enough to ever bruise the skin.
With that little energy at 25 yards I doubt they could have richocheted as far as 50 yards,assuming there was that much room.
