For magnums, any of the major factory (including Cor-Bon) 125 grain semi-jacketed hollow points. In 38 Special, any of the major factory 158 grain soft lead hollow point +P or +P+. Personally, I've always like Cor-Bon or Federal, but that's definately a persona bias. Don't be afraid of the magnums on a 2.5 Model 19. They are rugged, but with proper grip and practice they are managable, but not pleasant. I wouldn't want it publicly admitted, but I usually carried +P+ and felt secure all night. I've seen what they can do to just about every part of the body and it is not pretty. If you can get them, the old Nyclad rounds made for the Chiefs Special is a good standard velocity round that's a pleasure to shoot, but very expensive.