@kispro2000 all Centurions in Vietnam had the B barrel. A barrel did not have the fume extractor. The three ribs are the counter weights to balance the gun when the .50 cal was fitted. The .50 was a ranging gun for the 20 pounder, it had the same trajectory and saved wasting 20 pounder ammo. All ...
@kispro2000 all Centurions in Vietnam had the B barrel. A barrel did not have the fume extractor. The three ribs are the counter weights to balance the gun when the .50 cal was fitted. The .50 was a ranging gun for the 20 pounder, it had the same trajectory and saved wasting 20 pounder ammo. All ...