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two malfunctions tonight -- advice needed
#1
See pictures: http://i.imgur.com/vPs5w.jpg (good round on the left, jammed ammo on the right)

I've put about 1000 rounds through this pistol, with absolutely zero failures of any type. Tonight I went to an indoor range and had two malfunctions , out of two different boxes of the same brand of ammo. Both malfunctions resulted in the case getting crushed exactly as seen in the photos, and both malfunctions locked the slide open about 1/4"-1/2".

It looks like the case got stuck on the feedramp and the slide moving forward mangled the brass. My question to the experts here is , is this just a symptom of a dirty gun (had several hundred rounds through it at that point), bad ammo, shooter error or a more serious problem? I've shot hundreds of rounds at a time before with no issues, so I'm not thinking being dirty caused it but I'm not ruling it out either.


Firearm: Ruger SR9c
Ammunition: Federal American Eagle 115gr
stimrob, proud to be a member of pa2a.org since Sep 2012.
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#2
I would look at your magazine first. Depress the follower with a screwdriver or something and ensure it does not get hung up on anything on it's way up. If the follower has developed a barb or jagged edge, maybe knock it down with some sandpaper or a stone. Has the mag been taken apart and cleaned/oiled? I don't think it should be required after only 1k rounds, but it's worth checking out. Do you have a different one you could test with?

Even dirty, does your feed ramp look smooth? I generally polish mine, but after as many rounds as you've shot, it should effectively be done by now.
TheWolff, proud to be a member of pa2a.org since Sep 2012.
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#3
I haven't cleaned the mags, and I'll check the follower for burrs. The feedramp itself seems smooth enough -- are we talking about just the concave ramp part, or the whole piece? There's a super-tiny burr at the base of the feedramp on the edge between the bottom and the front of the ramp. I don't think the ammunition contacts that part -- red area circled in pic.


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stimrob, proud to be a member of pa2a.org since Sep 2012.
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#4
stimrob;25218 Wrote:I haven't cleaned the mags, and I'll check the follower for burrs. The feedramp itself seems smooth enough -- are we talking about just the concave ramp part, or the whole piece? There's a super-tiny burr at the base of the feedramp on the edge between the bottom and the front of the ramp. I don't think the ammunition contacts that part -- red area circled in pic.

I was just talking about the concave part. I've had failures to feed before, but never rolled back brass on a cartridge like that. I'd be interested to see what problems others have made that would manifest that way.
TheWolff, proud to be a member of pa2a.org since Sep 2012.
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#5
Looking at the pictures of the ammunition it looked to me as though those two rounds were not properly crimped. Even ball ammunition should have a taper crimp in 9mm and those did not look right IMHO. YMMV but that's my $0.02.
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"The problems we face today are there because the people who work for a living are outnumbered by those who vote for a living." Dan Cofall
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#6
Could you link me to a pic of a properly crimped round for comparison? I bought a 1k round case, and I have 500 rounds left. Is this something I should contact federal about?

Thanks for your help.
stimrob, proud to be a member of pa2a.org since Sep 2012.
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#7
billamj;25230 Wrote:Looking at the pictures of the ammunition it looked to me as though those two rounds were not properly crimped. Even ball ammunition should have a taper crimp in 9mm and those did not look right IMHO. YMMV but that's my $0.02.

The round looks exactly like the first round of 9mm I ever loaded myself. The bullet was crooked when I went to seat it and the brass rolled just like that. It didn't take anymore effort than the rest of the rounds that came out fine. I didn't notice until I went to inspect them all.
Interdum feror cupidine partium magnarum Europae vincendarum
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#8
Warpt762x39;25264 Wrote:The round looks exactly like the first round of 9mm I ever loaded myself. The bullet was crooked when I went to seat it and the brass rolled just like that. It didn't take anymore effort than the rest of the rounds that came out fine. I didn't notice until I went to inspect them all.

Interesting , thanks for the input. This was what it looked like when it came out of the gun, I checked them while I was loading and none of the cases were rolled and the bullets weren't loose.

I'm leaning towards ammo since the gun's been flawless until last night, but I was under the impression American Eagle was some of the better "plinker" ammo types?
stimrob, proud to be a member of pa2a.org since Sep 2012.
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#9
stimrob;25267 Wrote:
Warpt762x39;25264 Wrote:The round looks exactly like the first round of 9mm I ever loaded myself. The bullet was crooked when I went to seat it and the brass rolled just like that. It didn't take anymore effort than the rest of the rounds that came out fine. I didn't notice until I went to inspect them all.

Interesting , thanks for the input. This was what it looked like when it came out of the gun, I checked them while I was loading and none of the cases were rolled and the bullets weren't loose.

I'm leaning towards ammo since the gun's been flawless until last night, but I was under the impression American Eagle was some of the better "plinker" ammo types?

Even the best companies have some slipups. I had two rounds of Remington 9mm in the same box that were messed up.
Interdum feror cupidine partium magnarum Europae vincendarum
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#10
Warpt762x39;25269 Wrote:
stimrob;25267 Wrote:Interesting , thanks for the input. This was what it looked like when it came out of the gun, I checked them while I was loading and none of the cases were rolled and the bullets weren't loose.

I'm leaning towards ammo since the gun's been flawless until last night, but I was under the impression American Eagle was some of the better "plinker" ammo types?

Even the best companies have some slipups. I had two rounds of Remington 9mm in the same box that were messed up.

^^^^^ Truth! I've had ammunition from Speer, Remington and Winchester that was screwed up straight from the factory over the years. Can't say that I've had issues with Federal or Black Hills though, of course that could just be luck. Wink Anything that humans make can get a little screwed up every once in a while.
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USAF (1976 -1986) NRA, GOA Anim_sniper2
"The problems we face today are there because the people who work for a living are outnumbered by those who vote for a living." Dan Cofall
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