Looks like it is time to pull 50 bullets and load the proper amount of powder in them. 9 mm is a high pressure load to start with. If you know the amount of powder exceedes the max amount for the bullet you are loading there is only one thing to do. Pull the bullets and load them with the proper amount. At least all the primers won't have to come out and the bullets can be still used when you get the right amount of powder in the case. It is a pain to have to do this but it is much better than blowing up your pistol or worse.
I don't know just which bullet you are using. 320 is a fast burning powder. I would prefer a slower burning powder for a heavy bullet. You are already at max or above for that load. Going beyond is just not good.
Last edited by Misssissippi Dave; October 22, 2012 at 06:47 PM.