Had been thinking about a new build, and was trying to decide .223, 22-250, .22BR, etc... when I went to the range to fireform some 6PPC and thought why not just chamber a barrel up in .220 russian with a no-turn neck, LAPUA brass is plentiful, I could just swap barrels on my existing 6-ppc, amd it would be a lot cheaper than an entire new build. Have never seen anybody using one. Anybody shooting heavier 77-90gr bullets in 220 Russian? Loads? Performance?