Bolt stuck after firing Ruger American 7mm 08

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Clay00019

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New Ruger American 7mm 08

Only factory Hornady white tail 139 grains ever used in gun.

2 boxes through it, worked fine until today.

After firing, bolt will lift up, but will not slide back, had to gently tap back with a piece of 2x2 on bolt handle.

Happened 3 times, put some gun oil on brass problem solved for about 10 more rounds than stuck again???

Cycled a spent round through chamber with some machining bluing on it that revealed 2 scratches on brass tapered section just before the it meets the main case section about 140 degrees apart.

Scratches are barely deep enough to feel.

Any suggestions to fix? Can lapping compound be used on a spent round to polish it out? Any ideas appreciated, thx!
 
Had exact issue with a Remington 700. A few scratch marks on spent cases indicated a burr in my chamber and scratched the whole case length wise trying to eject it. mine was noticeable visually and feel it on the cases. I had to send it in for warranty work sucks for a new rifle with “test” target in the box that they shot at
 
OK, when a round fires, the cartridge case expands and grips the chamber. Lubricate the case, and the grip is reduced, and backthrust against the bolt and locking mechanism is dramatically increased.
There are designs that used lubricated cartridges - some machineguns, the Pedersen rifle.
But generally speaking, lubricating cartridges is a bad idea.
 
Is this a new box of ammo? Is the ammo that you fired with no problem the same Lot # as the problematic rounds?

Also, don't lubricate your cases.
 
time4t said:
What appears to be being described sounds more like a brass / factory load issue than a rough chamber. Hornady brass is on the soft side and their loads are often pretty warm, and can sometimes border on being over pressure . "Oiling" your cartridges is not wise. Try a different brand of ammo, and be sure your chamber is clean.
Click to expand...

No obvious signs of over pressure...primer is good..no case cracks...no bulges. Spent brass cycles flawlessly.
 
I would almost suspect you had some debris in the chamber if all the rest of the same lot of ammo worked fine.

My first step would be to try some other brand of ammo. If that fails too, then you have a rifle problem for sure. And would have to send it in for warranty at Snapshots......
 
Had a friend with an Axis that was new, he started getting pressure signs, sticky bolt lift after firing about 60-80 rounds without cleaning. He brought it over & I cleaned the bore and then went at it with copper solvent, ive never seen so much copper come out of a bore, the patches kept coming out blue for a long time, after a thorough cleaning he tried it again with the same ammo and it was fine no pressure signs. I figured the brand new rifling being sharp and rough might have stripped enough copper off the bullet jackets and built up enough to cause higher pressure. Where the rifling is new may it be possible the bore is copper fouled bad enough to cause pressure signs? New rifling can copper foul pretty quick. Has the bore been cleaned and copper solvent been used to remove copper fouling?
 
Gatehouse said:
I would almost suspect you had some debris in the chamber if all the rest of the same lot of ammo worked fine.

My first step would be to try some other brand of ammo. If that fails too, then you have a rifle problem for sure. And would have to send it in for warranty at Snapshots......
Click to expand...

I agree, just checked all the ammo, there are actually 4 boxes all Lot# 8057. I checked all the spent brass with a mag glass all has exact same marks. I gave it a good scrubbing in the chamber will try it again tomorrow. Thanks for all the great feedback!
 
300_savage said:
Had a friend with an Axis that was new, he started getting pressure signs, sticky bolt lift after firing about 60-80 rounds without cleaning. He brought it over & I cleaned the bore and then went at it with copper solvent, ive never seen so much copper come out of a bore, the patches kept coming out blue for a long time, after a thorough cleaning he tried it again with the same ammo and it was fine no pressure signs. I figured the brand new rifling being sharp and rough might have stripped enough copper off the bullet jackets and built up enough to cause higher pressure. Where the rifling is new may it be possible the bore is copper fouled bad enough to cause pressure signs? New rifling can copper foul pretty quick. Has the bore been cleaned and copper solvent been used to remove copper fouling?
Click to expand...

It cleaned up very easy not much copper.
 
The scratches sound like marks from the case dragging across the corner of the locking lug seat. The difficulty opening is reflective of a lack of primary extraction, in combination with a box of ammo which is just a little hot. All of this is theory only since I have not seen the rifle, the ammunition, or the fired brass. Might as well use a ouija board.
 
Tested this morning ran three mags in quick succession, works perfectly. Guessing it was build up/debris in chamber. Thanks.
 
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