I don't know anyone who uses Hornady handgun ammo but their tactical TAP rifle ammo is very popular with the law enforcement community. Hornady is known for high quality products so I would expect that their handgun ammo would be as well.

I think that any 9mm would work fine if you hit what you are aiming at. I am convinced that as long as you get any modern load from any of the bigger ammo companies (and I would put Hornady up there), you are good to go.

I never tried it, give it a try, accuracy comes from the shooter.

I actually have 10+1 in my Rami right now, I reload using the jhp/xtp so when I saw the factory loaded stuff for a decent price I bought 100rds. I ran 30 through my Rami and 30 through my wifes pm9 to make sure they worked well. They cycled flawlessly in both weapons, I have the 115 gr's I would say get some and see how they function in your gun before you use them for carry

There on sale at Midway right now. Good luck.