If you're looking at a rather inexpensive and intersting piece of history, then you might want to consider the Mosin-Nagant 91/30 in its sniper configuration. These rifles have been popping up over here in recent years at very attractive prices. The optics aren't world beaters but as a piece of living history, the old warhorse is hard to beat.
In the 2002 movie, "Sniper 2", Tom Berenger's character, MGySgt Thomas Beckett, uses the Mosin-Nagant 91/30 against the "Serbian" sniper (the movie was shot in Hungary and the Serbs speak Hungarian!). And the Russians issued their snipers with bayonets -- just in case.
Below: A 7.62x54R caliber Mosin-Nagant 91/30 Sniper's shows its PO-1 sight (3x) and modified, bent-down and polished bolt that distinguishes it. The long socket bayonet was standard issue for Soviet-era snipers. Magazine capacity is five rounds of 7.62mm rimmed ammunition. Slings for the rifle are a rather curious blend of leather and webbing. The two horizontal slots are for the "sling swivels" -- actually two pieces of leather with a button that attaches the ends to form a loop -- and the sling made of webbing that attaches to them. As far as I know, only the Soviets and some of the other Combloc countries who produced their weapons, used this kind of sling. Chinese Type 44 rifles (Mosin-Nagant Model 1944 carbine) and Type 56 (Soviet SKS-45 carbine, Soviet AK-47 assault rifle) or M22 (Chinese AK-47 export) carbines and assault rifles all used this type of sling in Vietnam.