Dating a swiss k31
While rifle production cease in 1918, carbine production continued until 1933.
It can be reloaded, but takes somewhat more effort than boxer primed brass. If you wish to fire your Model 1889, you are going to have to reload your own cartridges. Quite a few Model 89s were altered to a configuration similar to above in the 50s and/or 60s.
Is is unknown whether or not these rifles saw any combat. Your average Mauser will give 2"-4" groups at 100 yards.
Weatherby, who rifles sell in the 00 range these days, guarantees a 1.5" group at 100 yards.
If you mean by "machine-gun" a fully automatic crew served weapon..
If however, you are referring to a semi-automatic weapon, the answer is..of.