The pinch lock is similar to a straight through action with the mid-portion of the bolt looking like its on levers. Two-stage adjustable trigger. You guessed it - made in Finland. Krico Manufacturered in what is now former East Germany. The former is the more expensive.
Triggers are adjustable two-stage.
Used biathlon rifles are hard to come by, but are worthy of consideration. There is a classified ad section for this site which has featured used rifles from time to time.