07-25-2018, 04:39 PM
With this being a SS Alexander Arms barrel a finish reamer could be used. I suggest you contact AA as they did have a few out of spec barrels slip out around that time period. If AA won’t help you out you could do what a Friend did with his short chamber 6.5 Grendel. His barrel was very accurate and he didn’t want a refund or exchange. He seated the factory ammo bullets a few thousandth deeper where they would extract. He chronographed the ammo and saw no difference in velocity or any indication of higher pressure.
If A-Max or ELD-M factory function and can be ejected but the Hornady American Gunner won’t eject could be the slight profile difference in the bullet causing the problem. I’d suspect after a few hundred rounds the throat would wear enough the factory ammo would eject. The short chamber was a non issue for my friend since he didn’t shoot much factory ammo and he only owned one 6.5 Grendel.
If A-Max or ELD-M factory function and can be ejected but the Hornady American Gunner won’t eject could be the slight profile difference in the bullet causing the problem. I’d suspect after a few hundred rounds the throat would wear enough the factory ammo would eject. The short chamber was a non issue for my friend since he didn’t shoot much factory ammo and he only owned one 6.5 Grendel.