My semi-custom 6mm Grendel bolt action build

[Msalm]

Just an FYI, I measured the neck diameter of loaded ammo again the other night, new Starline and Lapua brass both measured at .273". Both are too tight with the .274" neck I made my rifle in. I had loaded rounds from some old original AA (Lapua) brass I had for years and that stuff measured .269" with an 80gr TTSX bullet seated. For me it looks like I'll be neck turning the new brass if I use it for this rifle. I don't have a 6mm Grendel/243LBC reamer, but I'm betting the current reamers made take that into account and will have no issues.