Outside of a monolithic solid there aren't many bullets that will hold up well at that kind of impact speeds . Sierra GK , Pro Hunters , and Nosler Partitions do pretty well up to about 2800 in 115&117 gr 25 cal .
I don't have any direct experience with ELD or X .
The 7.5 and 7.65s are .300 dia aren't they ? That would tend to suggest that the bullets are adjusted for the Mauser family velocity windows vs the all purpose 2500-3000 of the other .473 rim 30 cal and Mags . At 2400 fps it's probably right at the top of it's service design . I got nothing if it's a .308 dia other than maybe that's what it's supposed to do .