[ARCHIVED THREAD] - Difference in XM80 Designations

Posted: 5/1/2009 4:06:47 AM EDT

Does anybody know what the different designations (e.g. PDI and CS) mean for 7.62x51mm XM80 ammo? Are there any differences in powder loadings, bullet type (e.g. lead vs. fmj), manufacturing quality, or anything else of that nature?