centershot
Silver $$ Contributor
I am in the process of building one. Would like to pick someone's brain about it.
All 3, 6x45, 6x45ai, 6mm TCU are pretty close in overall performance. The 6tcu requires fire forming and the case is a bit more straight vs tapered of the other 2.Yes and a 6X45AI and they may not be the same...
My go to powders are H335 & X-terminator with 55-95g bullets.Favorite powder?