A scoped 30-30 will do 200 yards.
A scope 308 Savage bolt action will do 400 (my open sighted FAL will do 400 and both Savage bolt actions I had did much better than my FAL has ever thought about being.)
A model 99 Savage lever action .308 will give you the speed of a lever action and the range of a bolt action.
For scoped use, an Enfield isn't too hard to get scoped but it does require drilling and tapping with all the mounts I have ever seen. Same with Mausers. But I have seen it done. I hate to see a good old military gun permanently altered like that, but realistically there are enough around that one less isn't going to make a huge difference.
Scoping a Mosin Nagant is slightly more challenging but I really havent looked into scoping mine. I might build a replica 91/30 sniper some day though.
Hopefully someone will chime in with some more knowledge on scoping though.
As far as accuracy, all of the military surplus rifles I have shot were as accurate or more accurate than new sporting arms I have owned.
My Finnish M-39 is the finest shooting rifle I have ever owned and you couldn't pay me enough to trade it for a Remchester. If you buy excellent condition with a good tight bore it should shoot very well.
The K-31 is known to be very accurate and may even edge the M-39 (although I doubt it), but ammo for them is expensive and hard to come by.
On my Mosin Nagant I don't really use the safety. I only load four unless I am shooting it at the range, in which case I load five and immediately shoot them. The safety is troublesome on them. I will give you that much.
To me, a scope isn't that necessary. I wear glasses but my eyesight is pretty decent with them so I just use the open sights. I like the issue sights on these rifles because you can immediately adjust them for different ranges and use the same hold to put your lead on target.
Back when I was shooting more I could routinely (about 8 out of 10 times) hit standard clay pigeons with my M-39 at 200 yards, and that wasn't with the good one. That was with the beat up VKT I used as a shooter. Clay pigeons are tiny at that range but that wasn't of much help to them.
Even the 91/30 that I gave my brother was respectable out to 400 yards, and you can pick them up for $60. An M-39 will run you from about $150 for a good shooter to around $250 for an unissued rifle depending on the maker. They are well worth the money IMO, but the 91/30 is great too.
Having owned and shot both, I can attest to the difference between them though. You can immediately tell that the Russians were conscript soldiers and that the Finns were mush more concerned with the individual soldier than the Russians were.
Despite my love of the M-39, the Mauser might be better in some respects (it has a more useable safety) and is probably a good place to start if you want to try a milsurp.
Being in Kali isn't that big of a deal. Don't get me wrong. The hand that was dealt to you guys isn't good.
Still though, I really would take my Milsurp over anything else I can get my hands on.
I am selling my FAL to buy components and ammo for my M-39.
That should say something about them.