Ruger made at least Three (3) differently-barreled Mark II Target pistols, with adj sight - so a shooter could have their druthers:
a 5 1/2" bull bbl, a 5 1/4" tapered bbl, and a 6 7/8" tapered bbl.
I dimly recall a 10" bull barrel, and possibly an 8" (Super Eight ?), also - but I'm getting CRS, there.
Although I'm certainly not smaller-framed, I happen to prefer the 5 1/4" tapered M-514T to the others, after owning/using them.
It additionally makes for one heck of a trail pistol.
YMMV, of course.