You don't buy milsurps for accuracy. You by them for the history, the stories they carry. It's like comparing a 57 Chevy to a new commodore.
In 50 years the Chevy will still be cool.
The challenge of getting Milsurps to shoot accurately is second to none. Any punter can plop a modern rifle on the bench and drill sub MoA groups. Getting decent groups with a 70+ year old rifle with iron sights is a rewarding experience.
Collecting and shooting Milsurps is for the love of shooting and admiring old guns. If you want a tack driver, buy a modern sporting rifle.
Milsurps and Blackpowder rifles are for people who just 'get it'. They are cool, what other reason do you need?
And for the record, I am in the camp of not scoping milsurp rifles. But I understand why some do, especially older chaps with failing eyesight.
From top to bottom
Mosin 91/30
Finnish M39
Swedish M38
FN M98
Savage no.4 mk1*
Get one, cherish them. Preserve them. Shoot them