Will Ruger sell just a rifle bolt? I've got a 338 RPR and saw the 300 PRC takeoff bbl listed on the exchange. It was a toss up when I got the 338 which one to get. Love the 338 but thought down the road, I wouldn't mind trying the PRC. But I'd need a different bolt. Seems like I remember some companies won't sell just the bolt, you have to send it (the rifle that is) in to get one (bolt) replaced. Ruger too??