The Swiss, Schmidt-Rubin K31 was adopted in 1933 and stayed in
service until 1958. Based on a long lineage of straight pull bolt
action rifles, beginning with the Schmidt-Rubin Model 1889. Rubin
designed the bullet that was combined with Schmidt's straight pull
A very accurate, detachable magazine fed rifle with a very unique
straight pull bolt that allowed the soldier to quickly chamber rounds
by pulling straight back on the bolt and then slamming it forward.
Very revolutionary engineering in a battle rifle for the late 1800's.
Because of this feature the soldier did not have to raise up (exposing
themselves to enemy fire) and chamber a round, like a standard turn-bolt