The higher the speed of fireplace, the more often barrels needs to be transformed and allowed to interesting. To minimize this, most air-cooled guns are fired only in short bursts or in a diminished level of fireplace. Some designs – including the lots of variants on the MG42 – https://zandernfype.qodsblog.com/38335205/belt-fed-machine-gun-can-be-fun-for-anyone