easier to carry in my backpack. Like you I have a 1377 bbl on a 2240 bottom with mod'd valve and other stuff...powerlets. Have a Phantom 2.5x scope on it. Good up to squirrels so far, haven't shot a rabbit with it yet.
My zero is 19yds because that's the length of my yard out the back door. I can hit a squirrel head consistently with 2 hands.
I like that you've done your research and practice. Hope some more non-Yanks have input.
Honestly, pistols are just more fun to play with and challenging to hunt with. My family's done the rifle bit all my life, so pistols are something unique to me.
Sorry for not posting sooner, I don't usually get to the hunting forum to often.
Be Well... Tom
"A fear of weapons is a sign of retarded sexual and emotional maturity." - Sigmund Freud