If it was me, and this might be my only gun Id consider either the 9mm or 45. I have two 40 calibers and have grown to feel the 40 S&W as being an unnecessary caliber. The 9mm will be a great economical caliber for lots of shooting at the range with enough oomph for home defense. The 45 while maybe a bit more expensive to shoot is bigger and starts off with a bigger hole in the bad guy. NOt entirely a bad thing IMHO.
The USP is a great firearm in either caliber. It's also not a bad choice for a newbie to semi-autos. Kept in first shot DA mode with safety on, and following good safety practises, it's as safe as it gets.
The USP is a great firearm in either caliber. It's also not a bad choice for a newbie to semi-autos. Kept in first shot DA mode with safety on, and following good safety practises, it's as safe as it gets.