I just received a 7 RUM Sendero from a friend who has completely shot the barrel out and no longer has a use for it. I want to rebarrel in a 338 of some sort that will give me maximum performance while being able to use this action and stock and keep it a repeater with a Wyatt's magazine. I've read lots on the Edge and Lapua/Lapua Improved. I've heard of a 338 Tejas and other improved versions on the RUM case. Thoughts? Thanks a lot for any info.