11-15-2015, 05:40 PM
I don't believe that bolts for the 6.5 Grendel need any modification "improvements" or any other caliber in the AR15 for that matter, just higer QC standards. When bolts break, they break for a reason; mostly due to out of square receiver faces and improper extension geometry. Not because the design is inherently weak.
The bolt in my first grendel has 5k+ rounds on it, second has 1200 rnds and the bolt I received in the Lilja short barrel group buy has 500rnds on it.
A friend of mine has 2500 rnds of .50 Beowulf on his bolt, the very same bolt the 6.5 Grendel uses. The bolts are not weak, but assembly and QC practices can be.
The bolt in my first grendel has 5k+ rounds on it, second has 1200 rnds and the bolt I received in the Lilja short barrel group buy has 500rnds on it.
A friend of mine has 2500 rnds of .50 Beowulf on his bolt, the very same bolt the 6.5 Grendel uses. The bolts are not weak, but assembly and QC practices can be.