Boy, you got to be careful with this and 40 SW cased rounds. They can build pressure very quickly and dangerously. Also, highly not to try .356" bullets in glocks barrels. There special rifling does not permit cast loads. So I sure wouldn't experiment with .001" greater diameter bullets.

Think I will be happy with the healthier 40S&W round. Makes a bigger hole and much easier to load, and no lubing of cases. Win, win.