Look people, you have my permission to nit-pick my logic all you desire,,,
But if the statement that "only trigger time will increase proficiency" is true,,,
Then practicing with an identical (or closely matched) rimfire is cost effective.
And to me the cost of ammunition for shooting is very pertinent,,,
I'm reasonably proficient with my defensive handguns,,,
22 LR practice allowed the requisite trigger pulls.
Well said!
And that is why I find myself shooting my Glock G44, AR22, Taurus 942 and 1911 with conversion slide more in the last 12-18 months versus shooting my centerfire rifles and pistols. I still shoot the centerfire guns but definitely shoot the rimfire versions more due to ammo availability. And yes the G44 is setup the same as my G19 and the AR22 is setup the same as my goto AR15. The Taurus 942 is the same as my Taurus 85 also. Trigger time is trigger time. And yes you still need to shoot centerfire regularly to maintain muscle memory for dealing with recoil.