I have a .357 Handi-Rifle with an 18.75" barrel that so many youth shooters, new shooters, and even myself and other experienced shooters find so enjoyable to shoot because it can be downloaded for some fun casual plinking.
I am loading a Lee 140-gr LSWC that drops from the mould unsized at 0.3595" and is lubed with LLA, and crimped into the upper lube groove (not the top crimp groove) because the leade/freebore in my rifle is quite long. This puts the front driving band about 0.015~0.020 off the rifling. I leave them unsized because of the Micro-Groove rifling and it seems to grab the rifling very well with absolutely ZERO leading.
With 4.2 Grains of Unique in a .357 Magnum case and a medium roll crimp, these go over my Chrono at a consistent 940-fps (ES=60, SD= 17) and are subsonic but still have some pretty good thump and are accurate with iron sights. I looked up bullet drop with that bullet coefficient and velocity and it's 12.4" @ 100 yards when zeroed to 25-yards. And the 50-yard drop is just 2.4 inches so anyone handling this gun can basically lay the sights on anything out to 50-yards and be on target given the margin of error with iron sights.
I've been having so much fun with this rifle just this way that I haven't put a full-power .357 magnum load thru it for a while now!
Shooting a "Lite" .357 from a rifle length barrel has an added plus in that there is a very slight amount of noise, less than the crack of a .22LR leaving the barrel above the sound barrier. So it's not objectionable to onlookers or neighbors.
And since I cast these bullets from free wheelweights, at 50 bullets per pound of lead, I can make 100 rounds including powder and primers and free re-useable brass for $4.75 per 100 rounds, about what 100-ct plastic pack of CCI Mini-mag 22 rimfire rounds would cost.
Anyone else out there handloading a pistol caliber for their Handi Rifle?