I shoot a Ruger American Predator in 6mm Creedmoor and ran into an issue that I haven’t had before. I shoot it regularly and have fired several hundred rounds through it and clean every 100 rounds or so.
I’m shooting Peterson srp brass that has been fired, sized and trimmed, using a less than max load of H4350 and a Hornady 105 bthp at .020” off the lands. My load has been 1/2 moa accurate out to 400 yards.
After swapping scopes and shooting several sight in shots last week, the bolt would not close on the next round. I tried several more rounds and the bolt still would not close. Something was not right so I checked the rest of the rounds for correct head space, case length and COAL, all were in spec.
Since the ammo checked out ok I ran a chamber brush through it and then ran a Bore Tech soaked patch through the bore followed by dry patches. Then tried it and everything chambered and bolt closed as normal.
While shooting it yesterday and after only 4-5 shots the bolt would not close, same problem. Ran the chamber brush through it and now it chambers and the bolt closes like normal.
Not sure what’s going on. The brass has been properly prepped, clean but not polished and bullet seating depth verified. After firing, the brass is not dirty or sooty. It seems to me that after firing, there is something getting into the chamber not allowing the round to fully chamber and running the brush through the chamber removes whatever is in there.
What are your opinions of what’s going on all of a sudden?
I’m shooting Peterson srp brass that has been fired, sized and trimmed, using a less than max load of H4350 and a Hornady 105 bthp at .020” off the lands. My load has been 1/2 moa accurate out to 400 yards.
After swapping scopes and shooting several sight in shots last week, the bolt would not close on the next round. I tried several more rounds and the bolt still would not close. Something was not right so I checked the rest of the rounds for correct head space, case length and COAL, all were in spec.
Since the ammo checked out ok I ran a chamber brush through it and then ran a Bore Tech soaked patch through the bore followed by dry patches. Then tried it and everything chambered and bolt closed as normal.
While shooting it yesterday and after only 4-5 shots the bolt would not close, same problem. Ran the chamber brush through it and now it chambers and the bolt closes like normal.
Not sure what’s going on. The brass has been properly prepped, clean but not polished and bullet seating depth verified. After firing, the brass is not dirty or sooty. It seems to me that after firing, there is something getting into the chamber not allowing the round to fully chamber and running the brush through the chamber removes whatever is in there.
What are your opinions of what’s going on all of a sudden?
