Typical reasons for which are:MIEKAT wrote:Another mosin/nagan cool feature sticky bolt sindrome.
1. Wrong kind of 7.62 mm x 54R ammunition:
- Some ammunition like 60's - 70's Czechoslovakian light ball just does not work well in bolt guns (but is excellent for semi- and full-auto use).
- Not all Mosin-Nagant rifles have the same cartridge chamber. Finnish military liked a little bit tighter cartridge chamber (drawings showing differences of measurements in between 7.62 x 54R and Finnish 7.62 x 53R chamber can be found in Wikipedia), plus both Finnish military and Civil Guard liked to test cartridge chamber throat area designs in search of design to produce best shooting accuracy with boat-tail bullets. In addition Civil Guard also liked bit tighter rifling, so much of the rifles manufactured for it have .3085 barrel.
2. Poorly cleaned cartridge chamber - storage grease can be difficult to remove. It also good idea to check chamber for burrs.
When a military rifle of any kind gets manufactured in millions during a war, one simply cannot expect all those millions of rifles manufactured under duress to be perfect. There is obviously going to be issues with quality control, but how large is the percentage of rifles that actually have these issues is really what matters - as long as the percentage is small enough, there is no real problem.
Here are just few videos about Mauser K98k:
Not all 7.92 mm x 57IS ammo work that well in all K98k rifles either:
Oldie, but goldie. This one is usually caused by the less-destructive one from the two typical mistakes by user:
IMHO - I doubt there was much of practical difference in between K98k and m/91-30 when it came to percentage of rifles that had quality-control related issues. Admitted lots of those problematic K98k rifles shown in videos seem to be "Soviet-captured".
As for best place to ask about problems with Mosin-Nagant rifles - Collector's Forum in Gunboards:
http://forums.gunboards.com/forumdispla ... -Nagant-HQ
Military Mauser forum in the same discussion groups (Gunboards):
http://forums.gunboards.com/forumdispla ... user-Forum
Jarkko