i don't know about the longer bolt handle on the sniper, but a useful piece of range equipment when shooting other mosins with some of the lacquered ammo out there is a rawhide mallet.
i have a few and find the m44's the handiest, but prefer the finn m39.
Just keep the chamber clean.
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling, which thinks nothing is worth war, is worse. A man who has nothing which he cares more about than his own personal safety is a miserable creature, and has no chance of being free unless he is made free and kept so by the exertions of better men than himself" John Stuart Mill
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