Hi folks, Just wondering which company has the best, most consistent velocities on their .357 Magnum ammo out of a 4" barrel. I've heard many stories of some ammo companies not living up to their velocity stats. I'm looking for the most powerful ammo out of a 4" barrel (Ruger GP100). I don't want watered-down ballistics; I want the full-bore, rip-roaring magnums. No specific reason; just for fun. I've read a few threads on here about Underwood Ammo, and they seem to get good reviews. However, I am open to other brands. Thanks! EDIT: Yes, thank you Kentguy, I do not reload.