Our Choices Not Necessarily Best Choice
4" .357 Magnum, preferably in stainless, and with adjustable sights. S&W K or L, Colt Trooper / Python size, Ruger Speed / Service Six or SP-101 sized. (Don't know the nomenclature for Colt or Rugers.)
One gun. First gun. Maybe last if he wants to keep the wife
, that depends on them.
My choice at present is a Kimber Compact .45, but that's what suits and works for me now. For decades, I carried a .357. I've had a Model 19, a Model 28, and still have a Model 686. All with 4" barrels.
Carried one for protection while a Deputy Reserve, and carried them CCW civilian. Worked well in both roles.
Hunted deer with the 686, and quite successfully, too, thank you. Although I now use a Ruger Super Blackhawk in .44 Mag for deer, the .357 has always performed nicely. Started handgun hunting with .38 Special wadcutters on squirrel. Did nicely there too. Accurate, low recoil, not much damage to the meat.
Combat shooting in the mid-80s. (Or at least what our department called combat. It was the standard MLEOTC course of 50 rounds up to 25 yards.) I had just bought the 686 NIB within months of their inital release, and the only thing I changed was to put on Hogue grips. Came in third in the county. Not bad at all for a stock 4" revolver.
Hmmm. Self-defense. Hunting, both small and large game. Fun and games. What more could we want from our handguns.
Now before I hear people telling me they can do all of that with their .45s, you're right. You can. But is that the BEST choice for a man looking for ONE gun. First gun. Again, as has been said already, the revolver is simple to operate. Maybe not the easiest gun to drive tacks with, especially if you learn to shoot it DA as you should, but nonetheless, simple. For a first gun, a single gun, I maintain that simplicity is important. And as much as we like our .45s, or 9mms, or .40 S&Ws they aren't necessarily simple.
(Of course, a nice Kahr in 9mm might make me change my mind!
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Edited for spelling other mistakes.