right now Im using Rainier plated 115gr bullets with 4.3gr of WST...no signs of pressure, etc...its estimated at about 1050 fps, but i cannot confirm that... but it's accurate and I can use the same powder for 9mm and 45acp
I've HEARD of people going as high as 5.0gr....I think that would be a compressed load...dont think i want to go there when 4.3 is an adequate plinking load