Right side at far end upwards they are machining the eccentrically machined nose which is accurately positioned radially, pressed into place and drive pinned, roll-sealed and then induction brazed. So it is very secure and very few ever worked loose although they would occasionally. The bloke in the dark overalls (this end, right) has a hydraulic roller loaded press which rotates as it bears down on the casing and puts the folded-over roll into the casing which additionally secures the nose. This was important to prevent the nose from being beaten forwards by the barrel and breech block during dry training. Dry training is one of the biggest killers of weapons fired from an open bolt because during training it's a constant metal to metal beating. The lady at this end (right side) seems to be machining the dovetail for the foresight after which the foresight protector is brazed. Left side is the examiners bench prior to numbering. After which the casing became an accountable part - and then on to the phosphating and painting plant