HGunner, you're welcome. I really like 3N37, it burns clean and gives good velocities, but unfortunately I don't have access to many of the American powders for testing. In revolvers I pretty much have to stick with Vihtavuori N110 for magnum loads, and 3N37 and the rest of the N300-family for pistol and revolver plinking loads. I can get my hands on some Hodgdon powders, but they are way pricey over here. HS6 shouldn't be too far from 3N37 in burn rate and will hopefully give similar performance.