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New barrel-problems ejecting 7mm Mag. cases

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Unread 10-11-2012, 08:56 AM
Junior Member
Join Date: Apr 2008
Location: Worden, MT
Posts: 17
Re: New barrel-problems ejecting 7mm Mag. cases

Thanks for the thoughts and opinions gang. stopped and picked up gun last night. What gunsmith discovered was the bolt face, just in front of the lugs was out of round. He chucked the bolt up to true the approximate 1/4" and took about .006" (about 2/3 of the circumference) off to try and bring the bolt back into round. He also took the barrel off again, cleaned up the chamber face and polished the chamber while he was at it. He thinks the bolt has always been like this but with the new barrel it just became accentuated. He fired the gun and bolt lifted and opened properly. He placed a previously fired cases that were sticking, closed the bolt and they ejected properly.

I have an exact model of gun in a .270 Win. caliber that he rebarreled last year that is a tack driver. When I got home I took calipers and checked for "round" in front of the lugs on it. Exactly .293" all the way around......so, I believe he did find the problem. I'm going to take 7mm Mag back to range this weekend and run it thru it's paces again to check it,

He claims (and I've heard from others) Remington's have this problem right out of the box sometimes due to their craftsmanship. Could be why the gun was shooting quite erratic last couple years with the old barrel. Hope I got all the terminology correct and appreciate hearing from others to see if this makes sense to you all! I guess my only doubt in this situation is why hadn't this problem shown itself in the previous 33 years I owned and shot this gun? Hmmmm.......thanks
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Unread 10-11-2012, 11:20 AM
Platinum Member
Join Date: Dec 2005
Location: Tucson Az
Posts: 2,060
Re: New barrel-problems ejecting 7mm Mag. cases

Sounds there was a bind between the bolt and chamber in the new barrel. The factory barrel's chamber must have been a bit larger in diameter which kept it from binding. Very interesting. Thanks for sharing.

I have seen three rifles in 30 yrs of handloading that had their bolt faces opened up for magnums and they were not opened up enough. That caused binding issues too. Hard bolt lift, hard removal or difficult feeding with a CRF were the symptoms.

Now you will put this in your bag of tricks of things to remember and will most likely never see it again. The irony is that sometime in the future you'll encounter another new problem and be back at square one trying to figure it out.
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