The Tubb Carrier Weight System adds 0.080" to the length of the BCG body - that's you're only solution for a fix, with keeping all the same parts you have.
The only ammo that's getting pierced primers is the Eagle Eye, and it's probably their primer selection that is the problem. Run what you have of it, and don't use it in the future - but reload the brass and see how it is, reloaded.
Firing pin hole in the bolt face - check that out. If it's too large, that can cause pierced primers. It'll usually do that on all your ammo, though.