That's like asking what should I have for lunch! Answers are gonna very from person to person even about the same rifle.
For instance, I disagree with Taxes Star about the Mosins. I think they are made just fine. They have been working since 1895, how crude can they be!? On the other hand they are cheap now, we're cheaper 5-6 years ago. Eventually the ammo will dry up or be banned. Tin of 440 rounds used to be $50 5 years ago, now it's $110 +/-. If you're going to buy one do it now and stock up on ammo right away. These rifles are generally not moa. Were never ment to be. Originally sighted in that if you aimed at the belt buckle you would hit center mass. This is a quick way to get millions of people armed without having to teach aiming at different distances. The rifles and their users that proved to be exceptional were turned in to snipers. Now these rifles have been used anywhere from 60 - 100 years....used, captured, re arsenalled, reused, recaptured, sold off and used some more.....coupled with different ammo from different countries and different lots you will have a hard time going past 500 yards. Sometimes going from a tin of ammo made in 1967 to one made in 68 even from the same country will change your results. There are too many variables to have a consistent rifle. On the other hand, if you don't mind having a 2-4 moa rifle that can hit center mass at open sight distances then you have a fine rifle, in that respect. The true sniper rifles capable of consistent and accurate 1000 yard shots are few and far between today.
Another question. ..have you ever shot one? Or any ww2 bolt action rifle? They are wood and steel. Most people have a hard time getting past the recoil after 5 - 10 shots let alone shooting to their hearts content. I shoot them often and usually go through a few hundred rounds. This leaves a nice black and blue mark on my shoulder! Mausers and Enfields are no different.
A few Mosins with 2 Enfields (not pictured). Got a few more since this pic was taken
If I were you I'd get a modern semi auto which takes common ammo. It will be cheaper and more advantage to you. Save money and look around. Right now is a good time to get into a AR. There is a surplus of them and many places are selling them cheap(er) to move the product. You can practice all day with 5.56 and not feel a thing. Before you go off taking out zombies at 1000 yards get good at doing that at 50 - 400 yards. If you're thinking of SHTF then that is much more useful than the occasional 1000 yard shot.