Re: Which 6mm?
I had a 243 AI built /barrelled by GA Precision as you may recall , 26" Schneider 7.5 twist on a Sako action I had. No regrets ! Fireform loads will shoot one hole at 100 and 1 " at 300 ( 38 grs H4350 107 smks touching) That is without tinkering with the brass( lapua) at all..
I have only just begun to work with this rig , at present I am working on a 115 DTAC load.
Bill , you are welco9me to call me days if you want to ask whatever , email me and I will give some nos. you can reach me at days.
Oh yeah the contour is only 5.5 , so if you have a 7 hv built it should get even better , reckon if I had to do it over I would have went with the 28" bbl ( or 30 ? : )