Anybody have much experience with this calibre? I'm considering having one built. Why does one ask???...why not I reply. Was considering using a donor rifle (haven't decided which to use yet. Maybe something on a Remington 700 or P-17 action). I have read that it be a bit of a barrel burner so a heavier contour might be in order. Might allow barrel to last a bit longer. Would go stainless as it handles heat better. One heck of a flat shooting calibre though. Thoughts, comments, guffaws!