4Seventy, very good! I appreciate the noted difference with the design of the 320 RN being used in the 360 Nitro and the PP. Since my Quickload software is being returned in exchange for the Vista version I used the Powley Computer on a website and they off course are using IMR powders, best velocities they give is 2083 fps I believe with either 4831 or 4350. Not a problem with that program but it is not what I have suspected the velocities to be. It is possible to get 2250 fps or there abouts with perhaps RL15? and not exceed 60,000 psi?

I built this rifle up with selected parts of good repute but.......chose not to have the action heat treated. I did on a 1909 Arg. that is going to be a 9,3x64 only because of that particular action. It is a questionable thing mentally to nag on you if lug setback will really occur in a renown strong action like I have understood the VZ24 to be. I will keep my Smith 629 4" strongside-always until I get enough time on it.

thanks again and will keep this thread updated down the road.

best regards,