22LR
For people who don't have skills with TAR21, M12S is better. It has low recoil but not that good aiming. TAR21 is better for long range.
That would be 38cal. ammo
.357 Magnum and .38 Special (to include +P and +P+ loadings).
depends on if its a s & w or a s 7 w long
It shoots better with the ammo box
No. Only shoot the caliber printed on the barrel.
yes
No.
No.
Yes.
Assuming it is in good condition to shoot any modern day ammo, yes.