OK guys
Last time I picked up an M-1 I wrote my initials in the ten ring at 300 yards!
Next......

Mark

Oh - and Rapaire

Probably don't have to tell you, but you might want to try your new Jaeger first with black powder rather than Pyrodex or the stuff made into premeasured loads. And start off slow - building up to rated grainage in small steps.
Just a hunch unless you are REAL confident about the manufacturer.