got a box of shells marked 6,5 los(2dots over the ( o ), ptr m/14. the bullets look like they were made on a mach. any help?
Those are 6.5x55 loesa patroner model 14 blank cartridges for the Swedish Mauser. When used, the muzzle was fitted with a cage device that shredded the wooden bullet. Red were for rifles, plain wood for machine guns.
Here's an example of the blank firing devices used with the loesa patroner blanks:
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