Good guns, everytime I get one, I get talked into selling it.
My favorite is the P4, the 4" blue bull bbl, I shoot this better than the 5.5" (go figure), taken lots of small game--especially squirrel.
I use the Iron sights.
For me the blued Rugers seem to be more accurate than the stainless 22/45. Actually I have had only one stainless Ruger (KM512-I think) that was as accurate and reliable as any Ruger blue. Just me I guess.
Since we have a couple of 22/45's for students to use ,giving me access to one, I'm not replacing mine.
After taking squirels and such this past fall with a plain Jane fixed sighted standard model, that's what I'll get next. Grip a bit wider, forgot how fun 'simple' can be --will miss mag release, but maybe won't get talked into selling this one.