Have you seen the Bikal 45-70 double rifle?

[Chuck from arkansaw]

This is a great looking side X side double rifle available from .223 to 45-70.  If it shoots the 45-70 would be a world class bear and hog stomper.
http://www.eaacorp.com/

[howie1968]

i  seen  that  rifle  and  man  i bet  it  is awesome  the only  thing  that  would bother  me  is  if  the barrels could be  easily regulated,  meaning  no  more  than  2  inch  differnece  but  that  would  be  some  major    hog  stopping  medicine

[Oldtimer]

I looked at the website and it talked about being able to regulate the second barrel by using a jackscrew.  There would be an advantage over the traditional way of regulating doubles, in that you could easily regulate the gun for different loads, like using the Browning system to tune a bolt action.  The MSRP is $629, and I suspect that it will be discounted.