So, from watching the biathlon and looking over the Anschutz and Izhmash websites; it's still unclear exactly how that action operates. It appears to be a locked breech, not a blowback, because the shooters are placing their thumb on the back of the bolt, and the bolt isn't moving backwards at the shot. Yet with very little force they are coming off the trigger and flicking the bolt back to eject the shell. It's almost as if they have a spring assist or a mechanically advantaged toggle system...
Interesting, but they are a new kid on the block. It doesn't look like they have any dealers carrying their products, but then it looks like they've only been in business for a month.You could get one of these
T3 Summit Rifles - PWS
Primary weapon systems T3 toggle bolt 10/22 type rifle
I know there is more than one design of the biathlon rifles, an I am only familiar with one. The toggle link is simply like two links of a chain. The operator lever is on the front section of the rear link. When you pull back, the toggle pivot pulls to the right, outside the action so there is plenty of room to pull the bolt away from the chamber. When you push the lever, the links go just past straight, closing the bolt. The geometry is set up so it goes a few degrees past center to the left, where the pivot point is jammed up against the left side of the receiver. When the round is ignited, any rearward thrust just pushes the toggle harder to the solid receiver, so it does not jump open. As soon as the bullet clears the barrel, the pressure is spent, so you can easily pull the lever, moving the toggle link to the right. In the toggle link system, nothing comes rearward out of the action so you can easily keep your eye right up to the peep sight and maintain your cheek weld for faster accuracy. It is a really simple system, requires almost no effort, and is fun to shoot.
I was looking at the new anshultz rifles. They are a different design. Leave it up to the germans to complicate things.