Certain Weapons firing 6.8 have the same damage as 5.56

the M277 and the partnered LMG both fire a larger 6.8 round rather than 5.56 yet still only do 25 damage per round. I believe they should be bumped up a small amount, not necessarily the same damage as the 7.62 assault rifles, carbines, and LMGs. I believe a respectable 30 per shot would be a better damage value rather than the current 25 damage given that 6.8 is between the 5.56 and 7.62 weapons.