I am looking at 416 caliber rifles. One is a 416 Rigby, because of the wide availability and variety of factory ammo--from fairly mild loads like this (Kynoch Ammunition 416 Rigby 410 Grain Woodleigh Welded Core Soft Point Box of 5 - MidwayUSA) to near-Weatherby loads, like this (Cor-Bon DPX Hunter Ammunition 416 Rigby 350 Grain Barnes Triple-Shock X Bullet Hollow Point Lead-Free Box of 20 - MidwayUSA). I also am considering a 416 Weatherby. For those of you who have experience with the calibers and/or rifles listed below, could you offer any advice? I was considering (with approximate price): $3,500: CZ 550 in 416 Rigby with the AHR Upgrade #3 listed here: American Hunting Rifles - CZ Owners $2,900 (retail, not MSRP): Weatherby Custom Mark V Dangerous Game Rifle in 416 Wby: I plan on using it on a Sept. 2010 Alaska brown bear hunt (possibly a lot of rain) and a June/July 2011 South African hunt (hoping to include cape buffalo if possible). Here are my thoughts up to this point about each of the following based on the the info I have to date. Am I missing anything I should consider?: AHR CZ 550 SAFARI: PROS: * More handsome. A lot more. * Fires the Rigby: with more different factory loads available; and easier to find in far away places, like SA. CONS: * Probably a little less weather resistent and significantly less ding resistant. * The ammo I want (the only 350gr factory load) is $230/box: Cor-Bon DPX Hunter Ammunition 416 Rigby 350 Grain Barnes Triple-Shock X Bullet Hollow Point Lead-Free Box of 20 - MidwayUSA * Unknown how the AHR will recoil on me compared to the Wby. * About $600 more expensive than Mk V. * Not sure what response to expect if there is some problem with the gun, especially if AHR goes out of business. WEATHERBY MK V DGR: PROS: * About $600 less expensive than AHR. * Probably a little better suited to getting wet and banged up. * I already own and revere a Mk V Accumark in 340 Wby. Familiar with the rifle/operation/maintenance. * Mk V stock seems to fit and dampen recoil to me. * The ammo I want (the 350gr factory load) is only $150/box: Weatherby Ammunition 416 Weatherby Magnum 350 Grain Barnes Triple-Shock X Bullet Hollow Point Lead-Free Box of 20 - MidwayUSA * A little more powerful than the Rigby. * Comes with proven removable factory brake (which I would not use while hunting, but maybe for "plinking"). * Weatherby will be around forever and stand by their rifles. * I could always drop it in a walnut stock later. CONS: * Not as pretty. As much as I love the AHR's looks, I think you can see which way I am leaning, but I appreciate any thoughts on what I am overlooking. Thanks in advance for any comments.