Actually baikal are quite capable of doing it in 303 themselves.

If you could convince them to set up a pair of barrels for the 7.62x39, apply a reamer to suit and so long as you can regulate it yourself you're done.

Of course, you'd have to get past 3 problems;

1. I would require new tooling, even just the reamers and sights, which would be between the 30-06 and 45-70 height
2. You would have to make sure they clearly understood what you wanted
3. As things stand there are economic sanctions that may prevent importation. All to do with the MH17 shoot down apparently......

But if you could convince them of it, I'd have one.

Plus another in 9.3x74R..........