Buy what you want. You seem set on buying the Mosin so just do it. If we all say don't and you keep saying you want to why ask in the first place? The problem with the Mosin is that it has terrible iron sights, it shoots a loud full power load, very few have been treated even close to well and those that have often carry a premium price, and most of the ammo you run across is junk. Again do what you want, I have two of them, but it would be the last rifle from the ones I own to be my only rifle. Yeah ammo is fairly cheap but anymore its right there with 7.62x39 prices. The trigger on the Mosin is quite possibly the worst I have felt on a rifle.
If you take anything other than price into consideration it falls quickly behind everything else mentioned as a primary rifle. It fits well into the 4th rifle spot where you already have most of your shooting needs filled and are just looking for something loud and cheap to blast at the range. And that's why I bought the two I did. They are nothing more than that and never will be. I wouldn't take them hunting and I wouldn't really trust I could hit a pie plate at 100 yards with one. They are loud and cheap to feed but mine sit while many other rifles get used. Look at an SKS. Fairly cheap rifles, fairly cheap ammo, less recoil and noise but still enough to have a good time, and a lot of fun to have a semi auto. Bolt rifles are fun if they are accurate. With the sights the Mosin comes with, the condition they are in, and the quality the surplus ammo runs mine have never been accurate. If I'm not putting the right where I want them I might as well be sending them down range as fast as possible.
I don't think I will really change your mind. You seem fairly set on the Mosin. It can be fun, especially when you hit something reactive, but outside of stuff that explodes when shot it gets pretty boring pretty quick. Not the rifle I would pick up if I had one to grab and was going either hunting or to the range. It will work for both and it will kill those hogs dead as dirt but just not my pick for either situation.
If you take anything other than price into consideration it falls quickly behind everything else mentioned as a primary rifle. It fits well into the 4th rifle spot where you already have most of your shooting needs filled and are just looking for something loud and cheap to blast at the range. And that's why I bought the two I did. They are nothing more than that and never will be. I wouldn't take them hunting and I wouldn't really trust I could hit a pie plate at 100 yards with one. They are loud and cheap to feed but mine sit while many other rifles get used. Look at an SKS. Fairly cheap rifles, fairly cheap ammo, less recoil and noise but still enough to have a good time, and a lot of fun to have a semi auto. Bolt rifles are fun if they are accurate. With the sights the Mosin comes with, the condition they are in, and the quality the surplus ammo runs mine have never been accurate. If I'm not putting the right where I want them I might as well be sending them down range as fast as possible.
I don't think I will really change your mind. You seem fairly set on the Mosin. It can be fun, especially when you hit something reactive, but outside of stuff that explodes when shot it gets pretty boring pretty quick. Not the rifle I would pick up if I had one to grab and was going either hunting or to the range. It will work for both and it will kill those hogs dead as dirt but just not my pick for either situation.