im a noobie at this firearms stuff, some im just regurgitating some stuff ive read.
dont forget that a round you may practice shooting 500 or 1000 times with at the range wont be the same round that you use at home for security purposes. hopefully youll never have to squeeze off any rounds in the house, but if ever you do, dont forget that that round will behave differently coming out the barrel.
anyway, the ONE time ive gone shooting, it was of rounds found at walmart.

h: the white box of winchester .40 SW.