Stop considering the price of the rifle when considering a scope. I'm mostly into hunting rifles and rimfires, but all have scopes and almost all of the scopes cost more than the rifle they're mounted on. It's common for the scope to cost more. At a quick glance, a $50 scope may look no different than a $300+ scope, but when the time comes to really put them to the test is when that $50 scope will rear it's ugly head. Losing zero is just one issue. Optics is a big deal to me. A cheap scope will tend to have a lot more glare if shooting in bright sunlight. The optics will not be nearly as clear when zoomed to high power. And even if things look great, the cheap scope won't last, at least not on a high powered rifle like mosin. Nikon makes a few lesser expensive models as well as Mueller. Just do your homework and you won't be kicking yourself later, trust me.