WHICH GUN WOULD BE BEST TO CONVERT TO 470 MBOGO THE CZ 550 or the RUGER M77.Is there anyone out there that would do the work for me and what would the cost be. thank you for your time...

Whichever you can get the best deal on a 416 Rigby action ought to work.

In the Ruger -- if it is the RSM -- you are paying extra for a barrel with integral rib which will be discarded unless you rebore (is there room?) instead of rebarreling. I am not sure that would make sense.

a ruger rsm can be rebored, pretty easy... but there's the rebore risk...

rebarrel cz 550 magnum in 416 rigby is pretty easy

reworking an enfield is WORK

and then when you spend lots more money on big actions

jeffe

The Mbogo I have is Dave's original, in a Ruger, which is a re-bore.

I think the cost of a re-bore is about the same as a re-barrel. There is more risk with re-boring (ie. that it will be done incorrectly), but I am not sure what the difference is in real terms. If I am not mistaken, Cliff LaBounty did the re-bore....but I thought I heard somewhere that he has retired/sold out????

A CZ550 is a cheaper platform to start with and is the direction I'd have gone if starting from scratch.

Cheers,
Canuck

cz

canuck so i start out with a cz 550 magnum in 416 rigby i get a new barrel from pacnor chambered for the 470 MBOGO,add to recoil bolts, im assumimg class bedding on the cz 550 what else would have to be done thanks for your time.....

From what I've seen, the American CZ stock is not too bad. With that in mind, you are basically just looking at a simple re-barrel (as you described), shoring up the stock a little (additional crossbolt and bedding), adding an Pachmayer F990 pad (not absolutely necessary but a great suggestion), and a tiny bit of feeding work. Its a real simple conversion.

If you want to go whole-hog and spend a few more bucks, you could add a custom stock with a little more weight to it. Take a look at Dave's more recent creation on his website. The wider recoil pad helps distribute the recoil over a wider area, the extra weight finishes it off at around 10.5 lbs and balances out better (compensates for the heavier barrel) and suits the big thumper a little better, aesthetically speaking.

Here's a pic of Dave's rifle, with the custom stock. I can attest that it is really nice to shoot...the stock really helps manage the recoil and it balances like a dream.



Cheers,
Canuck