I have been given a Southgate Japanese Weatherby Mark V in .240 Weatherby, with a very pretty straight grain walnut stock.

What bases and rings? I have also been given a Shepard P3 3x10 scope to put on it. If the scope is not to my liking I'll send it back and get a Leupold 3x9 to put on it. I have ordered several boxes of ammo for it. Ammo is on order.

Pictures would be a good place to start, or it didn't happen.

Personally, I like the elegance of Talley or Warne mounts. Plus, they are strong and low.

I do like Talley rings but I think their bases are too blocky and just look like a chunk of steel, Warne rings are similar to Talley but the steel Warne bases are much trimmer.
Lately I use Leupold dual dovetail rings and bases or warnes if I want a quick release.
I'm not familiar with a Shephard scope but the Leupold is never a bad choice.

Great cartridge for coyotes, antelope and deer.
I would put a 4-12X Leupold on it. That's hsys on mine. I like Leupold rings and bases.
Enjoy your 240.

You have discovered killing nirvana! From Mulies on down the .240 wby kills like the plague. All of the Partitions, TSX, Scirocco, the heavy B-Tips, GameKings...they work wonders from the ol 240. 4831, 4350, 414, RL22, RL19, all fantastic choices. And while standard primers work great, magnums will also provide consistant loads. Easy on the shoulder and exciting on the other end. Really a fun gun.

Thank you for the advice. I have ordered talley integral rings in medium height for my 3x10 sheppard scope.
I'll get pictures up soon, I dropped my camera in the Big Horn River in montana. There are quite a few places with factory ammo on sale, but mostly the lighter weights.

One thing that concerns me is that the length of pull is awfully short for me and when I run the bolt with the rifle mounted it comes within a few inches of my forehead. I may try and find a lightweight synthetic stock that fits me a little better and more suited to being roughed up.