“Sorry - if the bullet is going away from you, the recoil is 180° away - towards you.
Newton’s third law - it’s not just a suggestion - it’s the law.
This firearm has the center of the barrel in line with the shooters hand - eliminating angular forces from the equation and reducing muzzle rise. The movement of other components may change the perceived recoil but the net result is still opposite the travel of the projectile.”
I always thought that the equal and opposite reaction to the bullet leaving forward, was the bolt moving backwards. Once the bolt stops, its kinetic energy is transferred to the frame, and on to the shooter in the same line of travel. If the bolt doesn’t stop until it’s travelling downward, I would think that the only recoil would be at the point when it’s turning the corner.