When you say to those I'm guessing you're talkin about the projectiles? the 400 Warlord and the 408 Colossus are both .408 diameter caliber cartridges. But both are completely different size length and diameter cartridges the warlord utilizes the CheyTac sized action and the Colossus requires the 20x action from Pierce it is a Barrett size action. As far as reloading is concerned I make the dies for both the warlord and Colossus both utilize a 1.250 12 TPI die and reloasing press I personally use a redding press with the block adapter plug removed for sizing it can also be used for seating but it's kind of a pain in the ***. I personally use a twenty-first century press and styled died for seating but either way worksThese are for the .408 Collossus? What reloading equipment , dies and powder are utilized to create ammo?