Disappointed - Geissele 6mm ARC, 30 Rounds, Rifle Magazine

After waiting for for nearly 2 months for this thing to show up I excitedly load a few rounds, I get to about 12 and that's about all i can get in. Im thinking ok, its just in need of a break in and it will all wash out. Nope. The rounds bind and shift and get all out of sorts. Personally I expected far better performance from a geissele mag. I'll just load up all my 20 round steel mags that I paid far less for and that run flawlessly moving forward, sadly. For the money, buy 2 of the other guys mags. You know who I'm talking about. For 6mm ARC, 6.5 grendel or .338 ARC. I gave it 2 stars because it functioned, just not as well as expected