Some have tried some are trying and some will try Try No we just succeed! We produce the results you demand and need! ASC s Stainless Steel 6.5 Grendel magazines are engineered with the highest levels of quality and increased longevity, simply the best in the industry! Our magazines are manufactured 100% start to finish in the USA using .020 gauge 410 Stainless Steel Alloy, heat treated for superior strength and lasting endurance. Our magazines are chemically treated for corrosion resistance [ref QQ-P-35] and coated with our proprietary finish, Marlube which is a wear-in not wear-off coating that burnishes into the surface providing self-lubricating properties. The interior dimensions of OAL 2.316 Â± .002 are perfect for reloads. We manufacture the results you demand and need! Although we offer our 6.5 Grendel magazine in a 5, 10 and 15 Rounds, the 25 Round magazines can be permanently blocked to any capacity in between.