6mm ARC

[A5BLASTER]

So here I sit with two 6mm AR's -- 1 that is printing 3/8" groups with a 107 grain SMK @ 2760 fps and the other is getting interesting. Should I care about another new cartridge?

No.

Why spend more money too add complication to the loading bench to achieve what you already have.

I thought I would have my 6mm ARC barrel by now but guess things happen, so looks like I will have to find anouther barrel supplier to source a testing barrel from.