I understand the merits of being a one gun hunter and knowing that one rifle and its trajectory very well, but I'm going a different route. I am putting together a pair of rifles that are to be indistinguishable from one another except for the round for which they are chambered. The leading candidates for the actions / rifles are Husqvarna HVAs and MRC 1999. One to be chambered in 7x57 for 150 grainers , and the other in .350RM or .35 Whelen for 225 grainers. All for about 2700fps with BCs in the mid to high .400s for good game bullets. With matching scopes (Leupy fixed 4s) and plastic (??), and used on appropriate game only my shoulder and my powder scale will ever be able to tell which is which.