Longshot works for me!
I just started using Longshot for my G20 and S&W 610. I realy like the powder and it's very clean for me. In the S&W 610 I'm using 10.0 gr Longshot under a 180gr JHP and have no signs of pressure. That is one of the things I have noticed about Longhshot is that it runs lower pressure than most other powders at higher velocities. I'm loading 44mag rounds with it now and think it's great. Going to place an order for an 8lb. jug this week for it at Powdervally.com, possibly 2.