Let's talk pure economics here.
550 rounds of Wal Mart Federal bulk pack is (last I bought some) $21.7?.
550 rounds of even the cheapest 9mm (pandemic prices) is (11 x 19.95) is $219.95.
For ease of Math let's say $22.00 versus $220.00,,,
That's a difference of 198.00.
Lat's also make the presumption that you are "practicing" rather than "plinking".
You will get 11 times the practice time using 22.LR,,,
At a price difference of $198.00 that's almost the cost of a .22 pistol.
My Bersa Thunder 380 cost me $265.00 (pre-pandemic),,,
My Bersa Thunder 22 cost me the exact same price.
That means in less than 2 Wal Mart bulk packs (actually 1.33 bulk packs),,,
You have paid for the Bersa Thunder 22 in ammo savings.
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.
Aarond
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