This year Indian is allowing 1.8" straight wall pistol cartridge chamberings for rifle during Deer season.
 
I have successfully used 357, 44mag, 45 colt, 41 mag and 458 socom in rifles so far and want something that is more of a flatter shooter.  I want to make 200 yard shots with out having to look up the dope.
 
The new 1.8 (was 1.62 previously) made me consider the S$W 460.  But the accuracy concernes in the Encore (and the Ruger #1) give me pause.
 
What do you guys recommend?  
 
Is the 357 MAX a good possibility?  I already load for a Dan Wesson, so brass and dies are not a problem.  
 
Again I want to make a reasonably flat shot at 200 yards, what is best choice?
 
Thanks for any suggestions.
 
Fred