Shortround6
Major General
It's a testament to the quality of the M2 Browning that it was capable of being accurized into a single-shot sniper rifle.
Actually they were either Boys anti-tank rifle actions or captured Russian ( North Korean/Chinese) PTRD actions with Browning .50 cal barrels for easy ammunition supply. the resulting weapons were sometimes mount on .30cal MG tripods.
More like junior cannon than rifles.