PRomag 9-22 mags causing my 10/22 to be a jamomatic

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Anyone else having feed issues with these mags? I'm getting failed extraction after every round, and sometimes stovepipes along with that. Empty casing stuck on extractor and it's trying to push a new round in the barrel.

It almost seems like the mag is sitting a bit to high in the mag well?
Maybe the tops of the feed lips are pushing against the bottom of the bolt causing it to not complete its travel to the rear?

The two mags I purchased function exactly the same. I thought maybe the outer sleeve was causing the issue so I pulled it off. Still the same.

The gun functions flawlessly with my four TI-25 mags however, so I know it's not the gun itself.

Thoughts? :confused:
 
Two questions...

First, are these gen.1 or gen.2 mags? (gen.2 have metal pins front and rear to hold the mag in place and modified feed lips). Also DO NOT remove the feed guide spring; they won't work without it.
The early gen.1 mags had issues with the replaceable feed lips. If these are gen.1, contact the place you got them from to get replacement feed lips.

Second, what brand ammo are you using? As with any .22, the gun and the mag sometimes tend to be fussy for what ammo is fed to it. My 10-22 and 9-22 promag work flawlessly with CCI Blazer ammo, work okay with American Eagle ammo, but HATE remington ammo... this stuff will.. not.. feed in my setup.
So try different brands, it may solve your problem.

EDIT...
Sorry, just re-read your post and realized you are having extraction issues, not feed issuesf:P:2:
Still may be a feed lip or gen.1 vs gen.2 issue though.

HTH,
BB.
 
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Well, I did a little test and put some marker on the bottom of my bolt, put in the mag, cycled it a few times and sure enough, the feed lips of the mag are touching the bolt. I'm betting that it's causing enough friction to retard the complete cycle of the action. I'm going to start with re-polishing the bolt to see if the small amount needed to take off will cause the mags to feed correctly.
I don't really want to mess with the mags, because if you make a mistake.. poof, the mag is garbage.

Sound like a plan? :D
 
I bought two mags, and with one mag I have the EXACT same problem. I was going to post it, but I ended up deciding to call where I got it from first, just havent had time yet. Im not sure how to tell what generation they are though.

The other mag I bought functions flawlessly, so far. When i get a chance and out of the shop I am gonna give the guy I bought em from a shout and see what he says. He seems to know alot about these rifles, and these mags, and is a hell of a nice guy to boot, so Im sure he will know what to do!

The problematic mag will fire one, jam one, fire one, jam one. Extracts the empty shell fine though.
 
preppypyro said:
I bought two mags, and with one mag I have the EXACT same problem. I was going to post it, but I ended up deciding to call where I got it from first, just havent had time yet. Im not sure how to tell what generation they are though. The other mag I bought functions flawlessly, so far. When i get a chance and out of the shop I am gonna give the guy I bought em from a shout and see what he says. He seems to know alot about these rifles, and these mags, and is a hell of a nice guy to boot, so Im sure he will know what to do!

The problematic mag will fire one, jam one, fire one, jam one. Extracts the empty shell fine though.
Click to expand...




Gen 1 mags have a round plastic button on the front of the mag near the top and the Gen 2 have a metal button on the front of the mag near the top.Also the feed control spring on Gen 2 sits closer to the feed lips.
 
Kryogen said:
polish the bolt ? wtf.

Why not polish the mag instead?
Click to expand...


Because it's plastic.. you can't "polish" it, just sand it or file it...... One "opps" and it's garbage..

I've already got a polished bolt, one more little "touch up" in one area will not affect clearances much. I can take off a "micro-thou" easily. Make a mistake with some 220 grit on a piece of plastic and you are done.
 
I've got 2 of the 2nd generation mags and they are way more reliable than the Steel Lips I have. I can count on one hand the FTE I've had in the last 1000 rds.
Have you tried adjusting the feed spring height?
 
Unfortunately, the problem lies in the ammo and rifle.

I shoot the gen 1 mags in 2 10/22s manf at least 25yrs apart. ZERO problems. I even took a mag back from a very good customer and it runs like butter with my 10/22's

I shoot Win 333, Fed bulk HV, AE. Each rifle has its preference and when fed the ammo it likes, runs like a dream.

I found hard plated bullets to work best. I have done nothing to either mag nor the rifle.

Extraction problems can be fixed with a better extractor like a VQ. I had this issue with any mag. Swapped out that part and things have been running strong ever since.

the trigger guard assembly varies and that causes issues with feeding using ANY mag.

Many swear by the TI mags. My rifles wouldn't use them no matter what I tried.

So unfortunately, with varying production specs by Ruger, making a high cap mag work can be problematic.

BUT start with trying various ammo AND ensuring the mechanics are sound.

YMMV.

Jerry

PS just a thought. I was able to help fix a problem for another shooter by asking him to check his installation of the receiver in the chassis. He didn't seat the rifle deep enough into the stock which of course lead to all sorts of problems. The change was very slight but once seated, his rifle now runs just fine.
 
I got out and shot mine to day with blazers, cci standard and AE 38g and i had all kinds of trouble cycling. I tried them before with just 10 rounds in them and they cycled perfectly but with 25 rds in them they cycled may 2 , sometimes 3 rounds before jamming. ftf and fte. With my butler creeks I get 100% with 25 rounds.
Im going to leave 25 rounds in the promags for a couple days to see if that helps.
These are the newer gen 2 mags with the steel.
 
A lot of the problems we have seen with the Gen 2 mags are related to the top of the feed lips contacting the bolt, Do NOT remove any metal from the bolt, Remove material from the top of the feed lips, the mags have removable feed lips for less than $10 if you get carried away. I use a silver marker on the top of the feed lips, insert & cycle the bolt several times, remove material from anywhere the marker is removed from. Like always, slow & steady, fitting the mag often works the best. We have fitted a few mags in this fashion with 100% positive results....
 
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