Taurus 942 22 LR Matte Stainless Revolver

Edit: I changed the revolver for the .22 Magnum ammunition with the one with .22 LR ammunition because is much cheaper and that way you can train more.

Original article: If the 9mm ammunition is still expensive for you and you need to train, a .22 LR caliber firearm (where you can use also the .22 Short) might be the best solution. This Taurus revolver has 8 rounds and is a good solution for a close combat situation. So, good for concealed carry and home defense. It is the minimum required.

I won't advise in investing in a pistol for this caliber as there is already a handicap and if a firing failure adds to it, then you are finished. Here is a comparison between ammunition types.

Ammunition prices

.22 LR   ~ $4 .. $7 for 50 rounds;

and for comparison, other calibers:

9mm 115 grain ~ $11.39 for 50 rounds;

.38 special ~ $17 for 50 rounds.

.357 magnum ~ $25 for 50 rounds.

The web page of the product.

Here a video that demonstrate the efficiency of the .22 short and .22 long rifle ammunition: