It would cost me over $700/1,000 rounds to practice with what I carry. That's just not realistic when I shoot thousands of rounds each year. I also don't see the need, or the advantage, to practice with the same ammunition when regular bulk ammo works fine. I could send around 5,000 rounds of bulk downrange for what 1,000 rounds of duty ammo would cost me. I'm not trying to shoot 1/2 groups here. Just my opinion though. Maybe I'm just cheap.

The thing that matters most is your point of impact. In 9mm I notice very little variance in recoil, at least with what I've used. So point of impact is what needs to be close. I verify that with any ammo I'm carrying or practicing with. Good defensive shooting is something you eventually get a feel for, rather than carefully aiming... Muscle Memory is probably the correct term... Not to say that I don't aim, but if you can put three rounds center mass in under a second, you're really not consciously aiming... At that point it's knowing your pistol and knowing what movements you have to make to draw and get rounds on target.

I had found a cheap deal on tulaaammo. And wanted to see if the rumors I'd heard about it where true. They were confirmed here as being true. So I'll go with a regular brass bulk ammo. Like American Eagle or something similar. So as to limit wear on my Glock.
-Jake