I just bought a short 21.5" barreled 338 Lapua off the Hide. I'm getting ready to reload for it. Anybody have any real life experience with a short barreled 338 Lapua. Mainly what powder will work best out of such a short barrel. Thanks I have H1000 and was thinking Retumbo??? Thanks And yes I wish the barrel was longer. If you have a barrel stretcher I would be more than happy to borrow it.