I can answer your question on current production MR73s. I have seen, handled and shot quite a few. ( I own 2 MR73s) and have owned every model from original production ones.
They are of exceptional quality. The switch to 5 axis CNC machines has certainly paid dividends to Chapuis Armes and looks as though there has been a general uplift in quality.
On a side note, the take-over of Chapuis Armes by Beretta has resulted in cheaper prices for MR73s and MR88s ( at least in Australia it has) MR73s prices for the first shipment from Beretta Chapuis Armes ( due in 2 months) will be around $USD2700