Shooting 100 yds vs. 400 yds

[ShootnMathews]

This contradicts everything I know about mosins, which is limited I'll admit, but 5/8-3/4 MOA seems to be on the legendary side of the house when accuracy is concerned with that particular rifle. New trigger, new stock/bedded, sawed off barrel, drilled/tapped, etc? Or a brand new aftermarket barrel?

It is the factory refurbished barrel. Not the original to the action but the same barrel that it came out of cosmoline with.

Yes, new stock, bedded. New trigger. Drilled and tapped scope mount. Barrel cut at 26" with a side ported brake. At one point it shot several .3 Moa groups. Now it has opened up to around 5/8". Not sure why. Could be a number of reasons but I'm still pleased with 5/8"