 The advantage of the reduced charge ammunition to the sniper was that it aided in his concealment as the reduced charge rounds produced less muzzle flash than standard rounds and thus did not give away the sniper's position.Also produced was 6.5 mm gallery ammunition, incorporating a paper or wood bullet; and dummy rounds, which were issued to Japanese forces.These were either all brass rounds or, more commonly, red varnished wood with a metal base and rim.