Hey Marksman,
Go for one of those Ishapore Indian 2A bolt guns. Thay had issued these in the 50's (I think?) as they swicthed to a NATO 7.62, but used them relatively breifly while were waiting for their self-loading service rifles. They have modern steel in their construction and didn't see as hard use as some Mausers. Plus, they have detachable mags, so you could load up on mags and have somewhat quicker reloads than using a stripper clip ( Stripper clips make me [pissed] )
There is a company in the Shotgun News (Navy Arms, I think) with some decent deals. You can go for a good plain jane one for around $80 to a "customized" one (meaning new stock and scope mount, etc.) for about $200 or so. Plus, you get something in .308, a real long range caliber (don't fret, I own an AR-15, and it IS my multi-purpose rifle, and I also like the .223) with good knockdown power at these ranges.
My understanding is the SMLE series of rifles is one of the quickest and smoothest to operate, and I'll take one over a Mauser. I also like the flipping side tang safety (not a crossbolt or bolt-mounted knob /lever,etc.!).This also gives you a decent SHTF rifle for longer ranged targets. They are also quite accurate for a service rifle, but I don't know if it can hit priarie dogs at 300 yards (maybe stick with a Remington m700 heavy barrel for JUST that purpose). Makes a mess of prairie dogs, though
[frag]
Hope this helps,
Urban