Bigiron,
I sent some to a customer of mine who tested them in his 7mm AM with a 1-9 four groove. Groups at 100 yards were a shade over 3/4 moa and a couple groups at 300 yards looked to be around 1/3 moa.
He had a very limited number to test, really all I wanted to know is if they would land on point. At least at the velocities produced by the 7mm AM in a 30" pipe, it appears that 1-9 will do it, at least from that limited testing.
I have a 1-9 6 groove Lilja I am going to be making myslef an ultra light rifle with. It is a #3 contour and will be 27" long with a Rem 700 receiver and H-S precision sporter stock and DM system. Should be building that soon so I will be able to offer more information as well with the 200 gr pills in that twist. If they do not work in the shorter barrel, I will just have Richard ship me some 175 gr ULD RBBTs but I am hoping to use the 200 gr ULD RBBTs.
I think there have been a couple guys on here test them in the 7mm RUM with factory barrels. Some results were good, some not so good, typical with factory rifles.
Good Shooting!!
Kirby Allen(50)