.43g bb

From Airsoft Community Wiki

A 0.43g BB is a heavyweight BB manufactured by Digicon which is mostly used in sniper rifles to achieve greater accuracy, at the expense of range.

Due to their inconsistent finish, while retaining a lot of the applied energy downrange, .43g (and also .36g, .3g) they display markedly inconsistent shotfall compared to more consistent (.29 Supergrandmaster. .3 TM, .28 Guarder) ammunition. 0.43g BBs are less affected by the wind and are seen by some as foul-weather ammunition.