Originally Posted by Tnhunter444
If what you are wondering is whether the 25/06 caliber makes it worth more than another M77 MKII, that answer would be no. The M77 has been made in 25/06 for a lot of years and although not as prevalent as say a .270, .308 or 30/06, it's still not a rare rifle. Now something like a M77 in .284 Win., that's a different story. Enjoy your new rifle!!
Being chambered in .25-'06 would make it more valuable to me and I would pay a little premium for one so chambered.
The reason? Accuracy.
M77's and M77MkII's don't get a lot of props for precision and while I am a fan, I'll happily concede that the M77's reputation for "hunting grade" accuracy is well earned.
Some in certain calibers seem less precise overall than others. I've yet to see an M77 in 7 x 57 Mauser shoot under 1.5". Dittos for one in .257 Roberts. Dittos for 7mm Rem. Mag, and on it goes.
But I have yet to come across an M77R or M77MkII in .25-'06 that wouldn't turn in a sub-M.O.A. performance. I've personally known a dozen people with .25-'06 M77's and M77MkII's and have shot their rifles. Groups around 3/4" were no problem with any of them.
With the .25-'06 chamberings in M77R's and at least early production M77MkII's, the exterior barrel profile is the same as that of their .338 Win Mag versions. That, coupled with a .257" bore, makes for a pretty stiff "sporter" barrel, compared to what it would be if the exterior dimensions were the same as for the .270 / .30-'06 versions. I think that's one of the reasons why the .25-'06 M77s and MkIIs I've shot grouped so well.
And so far, they all have. As much as I wish I could say the same for M77's and M77MkII's in other calibers, I can't.
So an M77MkII in .25-'06 might not garner a premium but if I were tolling gun shows for an M77 or MkII, I'd be looking specifically for one chambered in .25-'06 because I'd have reasonable assurance of acceptable accuracy. I'd also be looking for one chambered in .250 Savage for the same reasons.
I think the OP got a good 'un and I hope he enjoys it!