Doug....
Yeah, the S&W M28 Highway Patrolman was standard issue for years. All the Troopers that I worked with over the years carried, and were issued, mag ammo.
About the only time that I'm carrying the mag round is outdoors, tho'..primarily when we're "in the sticks" in the piney woods of east Texas, where my packin' pistol is a Ruger .357 Blackhawk ( the smaller 50th aniv. model).
Otherwise, around the house, what's accessible to me as a dedicated weapon will be a .38 spl, usually loaded with the 158 LSWHP ( ordinarily the Winchester...the "original" round!).
And...for CCW...when I'm carrying a revolver ( a snubbie )..which is about half of the time...it'll have that same .38 load in it.
I'm "old school" I guess...trained on a wheelgun, and quite comfortable with same. A good .38 M10 was my "partner", everyday, for years. And, in the early 70's, when the "FBI" load came out and WHEN we could get it, twas' used.
Today, tho', we're require to use slide guns...but, still...the old .38 is a heckuva fine round!