Many years ago, the classic Browning B25 Superposed design was modified to facilitate mass manufacture. Japanesemade Brownings and Mirokus are made to a slightly simplified design that dispenses with a detachable fore-end and therefore some action machining (B25s have a hinged extension to the fore-end iron that engages in a keyway in the gun’s action belly). The 725 is a more radical modification, or, rather,
evolution, of the basic and much copied John Moses design. It retains a full-width hinge pin and bolt but does this in a significantly lowered action. The hammers are powered by coil springs hinged to the bottom strap. The re-engineered single-trigger mechanism is mechanical – preferable in a game gun because of its reliability, no matter the payload. The trigger pulls are improved. The 725 also introduced a new, impressive
choking system, the ‘DS’ (Double Seal). The chokes are, unusually, threaded to the front; there is a copper ring ‘compression seal’ to the rear. Both frontal threading and the rear seal prevent gas leakage. Ejectors are the familiar hammer pattern
powered by coil springs.