
Let's get something straight, guys: Englishmen should NOT pontificate about what is possible, not possible, easy, or not easy to do with a firearm. You don't have sufficient experience with the tools in question, since not too many of you have ever actually FIRED any.
I'm an American. Over the course of my childhood, I fired just about everything you could imagine, from shotguns to magnum revolvers, to 45 ACPs, to rifles. If your target is within twenty feet, trust me when I say that shooting it between the eyes is NOT HARD AT ALL. You just have to have a little patience, and actually AIM the PISTOL.
Maybe I'm luckier than most. My father was a U.S. Marine pistol trainer in Okinawa in the late fifties, and he trained me "the old way". I was ALSO a U.S. Marine, and I tested rifle expert the whole time I was in (my best score was 242/250 on a range with a 500 yard line, on a somewhat windy afternoon).
If you want to achieve virtually MYTHICAL performance, you can improve your marksmanship with a few exercises. My father used to hold a 2" thick dictionary out at arms length while he watched television at night to build endurance. Also, you can get a more stable shooting position by rotating your elbow upwards so the arm locks, and your elbow doesn't bend when the gun fires (the shoulder absorbs the shock and you maintain your "natural point of aim"). Also, forget all that "Weaver Stance" bullshit; stand sideways with your arm extended straight out from the shoulder; you make a smaller target that way and you're more stable, and it's easier to fire around corners.
My father knew a Colonel (his boss, actually) who could fire one shot to get on target, then turn and talk to you while firing the rest of the magazine -- and still be on target. When he aimed the whole time, at 50 feet he could cover his entire pattern with a half dollar piece. They used to shoot competitively, so they aren't the average, but you should know there ARE people who can do things like that.
Finally, when I lived in the Southwest, I met and went shooting with people who practiced "instinctual shooting" -- a method of shooting which uses our natural ability to point an index finger at a target -- to fire from the hip. They would practice using bottles about twenty feet away; this is about how big a person is at 50 feet (and smaller than your head at 20 feet).
They were excellent shots.
I guess the bottom line is, maybe Englishmen need more practice! Come hang out with us. You buy the beer, we'll buy the ammo, meet us in the cinder pits outside town and we'll teach ya, Grasshopper...