I have two 6.5X284's that I just finally finished for this shooting season. While they both shoot AWESOME they are so different in speed it's very strange. I have always been told that berger hybrids are a little faster than the VLD's because of the smaller bearing surface. so I exspected that to hold true and it didn't in this case. here are the details: 6.5X284 custom action, standard neck - 29" Krieger barrel and it's shooting the 140 hybrids @ 2980fps. 6.5X284 Savage action, .290 neck - 29" Hart barrel and it's shooting the 140 Hunting VLD's @ 3085fps. Same powder and primers, but the custom action is shooting .4 grains more than the savage. I just find it amazing that they can be so different.