God I feel old now when you say a 2006 RSM is vintage! LOL I have the RSM's in 375, 416, and 458 Lott..... all early 2000's runs.........I have a vintage 2006 RSM in 375 H&H; love the thing after the extensive work and $$$'s invested in it. A bit muzzle heavy but great shooter. I would like one-piece bottom metal though.