Love the serious expression on that young chaps face!
Two incidents from the past come to mind, 1960s Liverpool, UK, the mud flats around Speak Airport (Now John Lennon Airport) one of the Pistol Clubs I belonged too, had a Colt .45 ACP American Army (MP?) pistol show up, with two magazines, and a white belt?
As it was not registered to anyone, it was kept by some one in the Club, highly illegal at the time, had some excuse or other if it was ever discovered (I left the UK in 1965, no idea what happened after that, many pistols where given up with no questions asked later) Of course this was B/4 guns where subject to demonetization.
We had access to all kinds of Ammo, two of us headed down to the mud flats one day, the River Mersey was a tidal river (Still is) 23' of height of water, huge area of mud flats, One of 45 gal drums floated to a spot, half submerged, we thought about 500 yards out from the sand we were at. Shinny shimmery mud!
Hold over, press, bang! That .45 lobbed those 230g Hardball rounds out, great big splash when the bullet landed, and after a while you could get close, even hit the drum a couple of times.
We had a deal with the Army Corp of Engineers, we supply fuel, they built us a range! On the edge of a worked out stone quarry, now being used to dump garbage, huge hole in the ground, on the weekends it was closed, but our range was open, separate gate.
The rats did not notice that the dark they where in, had light enough for us to see them, I had lots of amazing hits at 50 yd plus, from a Browning Hi Power, in 9mm, and a Chiefs Special in .38 Special Calibre, 1.5 " barrel.
Shift scene to Florida, Palm Bay, 100 yd range, steel gong, 3 shots Glock 17 prone, 3 hits. 127g +P+, BANG.... 2 or 3 seconds, clang. I think the gong was 18' wide, by 30" deep. They were torso hits. You need to know this stuff, to make you a well rounded marksman.