Another no-go today! The bolt seems to be getting full travel now but I need to make some adjustments to the bolt stop system to allow another 2-3mm of reaward travel to allow positive pick-up from the mag. The bolt just clears the back of the mag but bounces forward again before the cartridges can rise high enough. The system is designed to stop the bolt travel before the bolt head makes contact with the rear of the body, and there is still a bit of space to play with.