Well, I'm a fan of most handgun rounds.
I'm pretty comfortable carrying my 36 every day,
However, even with +P (unless you carry BB 158 SWCHP +P), I don'g expect much expansion from a 1-7/8" barrel.
I don't see where an unexpanded .38 bullet at about 800 fps is better than a hardcast .32 wadcutter at almost 900 fps.
Plus, the .32 gives you an extra round.

BTW, I ended up taking the Sile stocks off mine and putting some factory targets on it. Very easy shooting.

I bought some Magtech hollowpoint ammo for it.
I've read a lot about primers not popping, so I'm thinking about pulling the bullets and replacing the primers with Federal primers.

Ya know, those Magtech hollowpoints would be pretty impressive if loaded to 1,100-1,200 fps.

Maybe I should have a swaging die made to allow me to make a .32 caliber SWCHP.
Powder coat them and load them to .32 H&R velocities.

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What would Jim Cirillo do?