As to kit guns, I have a 4" High Standard Sentinal in 22 lr, a 5 1/2" Ruger Single Six Mag in 32 H&R, and recently bought a Model 31 and had it's chamber extended to 32 mag. For me, as a caster the 32 mag is about the same velocity from a 4" bbl as a 22 lr, has a 100 gr bullet and depending on primer costs runs very close to the same price or less as 22 lr.