I may be mistaken, but I think that most .338 lapua's get around 2800-2850 with that powder charge. That is the DE "pet load" is it not (for the edge of course). I can see a Lapua Imp. geting that velocity, but not the standard Magnum. Dont mean in anyway to be arguementative, just thought that was the data for that round. unless that cartrige does that much better on with the 32" tube.