I'm thinking about going to one caliber pistol. Right now I have 5 pistols in 4 different calibers. I'm almost positive it's going to be the 9 or 40 I stay with but leaning towards the 9 since the wife shoots the FN I have so much better than other rounds.

I'm not a big fan of the 9mm for if the poop hits the fan but having a couple weapons that all can use the same ammo is a big plus for me. Should I not be worried about the 9 or should I just get her more practice with the 40?
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