I recently aquired a mini 14 my first semi auto. Starting to reload for it and have run across this problem it seems that some of the brass has a ding in the rim cause by the extractor. When after tumbling, decpapping and resizing putting the case into my Lyman case gauge to check if they need trimming the case will not bottom out due to the ding it the rim. I can force it but my question is do I need to remove this ding and if so how? Or can I load and not worry that it will cause a problem by causing a jam.
new to 223 ?
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Blue68f100
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I would fix the gun so it doesn't ding the brass.
The odds of the extractor hitting the same place is rare. So with that said, Is the ding on the side or base?
The odds of the extractor hitting the same place is rare. So with that said, Is the ding on the side or base?
armoredman
Member
If it's a crease that is deep enough that it could weaken the brass when fire form/resized out, yeah, it needs to go. If it's a little bump in the case wall, not the neck area, eh, resize it and see what happens. I get those often, and they resize out pretty easy from the smaller ones.
Load Master
Member
I load a lot of .223 Rem. If there is a bur on the head from extraction that is causing the brass not to gauge properly I will use a small jeweler's file to touch up the area causing the issue. Fast and easy to fix.
New or used?
No rifle should routinely be producing brass with the damage shown in the picture you posted. Like Blue68f100 said, this seems to be a problem with the rifle and if it is new, Ruger should fix it and if it is used, you may need to locate a gunsmith.
Mini 14's send brass out at high velocity (Over gassed). That brass hit off something on the way out or on the ground. The ding is superficial. I made a home made "deflector" from a wire frame and cloth to knock them down because they were har to find after the Mini threw them all the way across the range. (Well, almost.)
Ironicaintit
Member
That seems to be normal for a mini.
Lightly file them down so they fit in a gauge, if you like. I tend not to worry about minor rim nicks anymore, since they don't affect the function of the rifle. Well....I've never had an issue related to it anyway.
Lightly file them down so they fit in a gauge, if you like. I tend not to worry about minor rim nicks anymore, since they don't affect the function of the rifle. Well....I've never had an issue related to it anyway.
Varminterror
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New or used doesn't matter. If there is indeed something wrong with the rifle, Ruger will fix it either way.
Pretty easy to diagnose whether it's happening in the rifle or upon ground impact - set up a brass catcher or deflector.
K
Kame B.
Guest
Looks like the bolt stop/case ejector is hitting pretty hard. Rub your finger on the bolt stop to see if there are any burrs or sharp edges, it could be cutting into the casing. Also inspect your bolt where the bolt stop rides up and down on and make sure it is not cutting into the bolt. If the bolt stop does have sharp edges or burrs you can easily take some 400 grit sand paper to de-burr it... lightly
You may also want to try some wilson combat 1911 recoil buffer on the action on the rear of the op-rod
You may also want to try some wilson combat 1911 recoil buffer on the action on the rear of the op-rod
DeadEye9
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I use the same method when I have an otherwise good piece that has this small anomolly. Typically it isn't often since none of my guns do it, but I sometimes run into the problem with range brass and the jewlers file method was just the ticket.
As was said by others though I would look at what causes the issue in the first place, and give the rifle a little "tune up" if necessary.
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