6mmTCU and 6x45AI- Is there any difference?

[Randfal]

I've been trying to compare the 6mmTCU with a 6x45AI. I can't really find anything different about them. Does anybody know if there is anything different between them or did TC just Ackley a 6x45 and put their name on it? Thanks.

 

[H2OBUG]

The TCU was a product of Wes Uglade-- I am not quite sure what the dimensional differances are but I would think the dies for the TCU may be a bit less-

I had one in a Contender-- very easy to load for and a great low recoil varmit round-- mine loved 70gr NBT's

 

[wapiti25]

The shoulder angle on the TCU may be different such as 45 degree. I have 7mm TCU dies, but it would be hard to measure the difference.

 

[Randfal]

I've found a drawing for the TCU and it shows a 40deg shoulder. I've compared the drawing to a 223AI and to me it looks the same other than the 6mm neck. I'm curious about it all because of the die and reamer option. It's pretty easy to get a 6mmTCU reamer and reloading dies. But the 6x45AI would be considered "custom".