.458 SOCOM vs .50 Beowulf

[acrashb]

Plated HG bullets would make for very cheap shooting (yes, I know the bores are a bit different so just make a HG bore rifle and use the appropriate HG dies.)

I've found plated bullets to work poorly in gas systems - HK P7M13, Desert Eagle, AR15 in .50AE - the plating isn't thick enough to stop lead from being shaved off when going over the ports, causing lead building in the gas system just about as quickly as unplated lead.