Does the .50 cal machine gun and sniper rifle use the same rounds?
NO. The military rounds for 50 cal. machine guns should not be fired in 50 cal. rifles for match or snipers. The tolerances of match and sniper chambers are held to tighter tolerances than machinegun chambers. It is entirely likely you would be unable to close the bolt on a McBros rifle if you used some cheap ammo. You may also not get the bolt opened after firing it also. Since McBros rifles have match chambers and Leja barrels which are hand lapped, using Machine gun or cheap ammo would result in ruining those pristine hand lapped bores. The Lead on those match rifles are not freebored, which means the amount of travel to engage the rifling is less on match rifles to increase accuracy. Ammo that isn’t held to exact standards and tolerances may “jam” into the short lead of these match rifles resulting in skyrocketing pressures. If there is one gun you don’t wont blowing up in your face it a shell that hold 233 grains of powder. You will look very silly wearing the bolt on or in your f
They can both fire the same rounds but the sniper rifles usually use the Mk 211 Raufoss round. Surprisingly, standard military ball is not as accurate or repeatable as armor piercing. So when using anything other than Mk211, AP is a good choice. (edit) While the M2 .50 cal machine gun can shoot the SLAP round (saboted) the M107 sniper rifle cannot.
