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LC9s fussy with ammo

This is a discussion on LC9s fussy with ammo within the Ruger Pistols forums, part of the Pistol & Revolver Forum category; Good morning all. I have an LC9s which I've put probably 400 rounds through so far. I've noticed misfeeds with both Herter's 9mm brass and ...


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Old March 23rd, 2017, 03:35 AM   #1
 
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LC9s fussy with ammo

Good morning all.

I have an LC9s which I've put probably 400 rounds through so far. I've noticed misfeeds with both Herter's 9mm brass and Hornaday Critical Defense. The Herter's was bad, 4 misfeeds through 50 rounds. I primarily use American Eagle 115gr FMJ 9mm Luger ammo for target shooting, and haven't once had a misfeed with that ammo. I ran a box of 25 Hornaday Critical Defence, and had 1 misfeed with that ammo also. Each time the gun misfeeds, the round is nose up above the chamber and causes the slide to not close.

Has anyone else seen this with an LC9s? I'm going to be trying some different ammo for CCW, maybe the Hornaday brass case American Gunner line.

I love the gun, I just need to find CCW ammo that I'm confident will run with no issues. On the bright side, I'm getting practice at clearing malfunctions!

Any help would be appreciated.

Thanks.

Matt



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Old March 23rd, 2017, 04:38 AM   #2
 
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My son and I each have one of them (LC9s PRO), not a single hiccup in over 600 rounds each. For CCW we use Federal HST 124 gr std pressure.
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Old March 23rd, 2017, 04:55 AM   #3
 
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Quote:
Originally Posted by mgehman1 View Post
Good morning all.

I have an LC9s which I've put probably 400 rounds through so far. I've noticed misfeeds with both Herter's 9mm brass and Hornaday Critical Defense. The Herter's was bad, 4 misfeeds through 50 rounds. I primarily use American Eagle 115gr FMJ 9mm Luger ammo for target shooting, and haven't once had a misfeed with that ammo. I ran a box of 25 Hornaday Critical Defence, and had 1 misfeed with that ammo also. Each time the gun misfeeds, the round is nose up above the chamber and causes the slide to not close.

Has anyone else seen this with an LC9s? I'm going to be trying some different ammo for CCW, maybe the Hornaday brass case American Gunner line.

I love the gun, I just need to find CCW ammo that I'm confident will run with no issues. On the bright side, I'm getting practice at clearing malfunctions!

Any help would be appreciated.

Thanks.

Matt
9mm cases are tapered. If you take 7 live rounds, lay them in a row and press them together you'll see just how much. Imagine those rounds in a single stack mag and you'll see how the top round, despite the mag lips will want to be hitting the feel ramp at a different angle. Double stack mags minimize this issue.

That little colored rubber insert in the Hornady CDef rounds is " sticky" enough that it can drag on the feed ramp. I use HST or Gold Dots for the top two or three rounds in my LC9s if I want to mix the CDef rounds in the last 4-5 rounds in the seven round mag. Hornady CDuty rounds are longer and the powder burn rate is formulated for larger pistols.

Just my opinion base on early testing with my LC9s. Now after more than 2200 rounds thru it, the feed ramp is a lot smoother, things may have changed but I've found something that works reliably so it doesn't seem worth more testing. (I'm also moving away from the CDef rounds, too)

Since I live pretty close to a Cabelas, I shoot a lot of Herters. Never had any problem with the stuff they have been shipping in the past 5-6 yrs. Early on it was made in Indonesia and was a different story.
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Old March 23rd, 2017, 05:50 AM   #4
 
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Since the LC9S comes with only 1 magazine, you will want (and should have) an extra magazine. The easy thing to do is to get that extra mag and see if your issue is a magazine issue. That's the first thing I would check. If that mag also doesn't handle those rounds then just avoid those troublesome brands.

I have heard of issues with Critical Defense ammo having such a thin jacket that it will deform on chambering in some pistols. I used Hornady American Gunner ammo w/ XTP bullets in my .380 LCP II and they work well. My 9mm is a Shield and I also use the Federal 124 gr. HST std pressure and have had no problems with them feeding. Same goes for the .45 HST rounds in my 1911 (which doesn't like the HydraShok ammo), no problems.

But first, get that extra magazine and see if that changes anything.
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Old March 23rd, 2017, 09:57 AM   #5
 
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All,

Thanks for your input. I do have a 2nd magazine, (1) seven round and (1) nine round. It doesn't seem to be magazine related from what I have seen. It's usually in the middle to end of the mag when it hiccups. Especially with the Herter ammo, it stuck 1 almost every mag I shot with that ammo. I just looked though some of my spent casings, and several of them had a minor flat spot, almost like it caught when feeding into the chamber. It wasn't just the Herter or Hornaday ammo I saw this on, it was the Am. Eagle also, but I haven't had any feed issues with the Am. Eagle. I do clean and maintain the gun after being at the range. I'll give some of the ammo you guys suggested a try, and keep an eye on the magazines. Usually I just reload the problem round manually and shoot it. I'll keep a better eye on any deformation of the casing.

Thanks again.

Matt
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Old March 23rd, 2017, 12:06 PM   #6
 
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try remington's older 124 grain jhp it and the 45 acp 185 grain load mimic the length overall of ball ammo nad both feed fine in older semi autos like 1080s and prior 1911s and high powers.
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Old March 24th, 2017, 12:30 PM   #7
 
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Another factor, sometimes mentioned, is the shooter's grip. A "limp grip" will work against the slide's function. A strong grip is always good.
My LC9sPro has never misfed until I deliberately tried the lightest-bullet, lowest-powered round in the Lyman handgun reloading manual. If one uses factory ammo, there should be zero problems. If reloads, avoid the lightest-possible loads.
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Old March 24th, 2017, 08:35 PM   #8
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I have thousands of rounds from two different LC9 and LC9S, NEVER a problem with any ammo. Must be something wrong. Feed ramp etc.
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Old March 25th, 2017, 03:11 PM   #9
 
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I have an original LC9.

I've have had only one misfire/jam with it.

That time, when loading the magazine by hand, I noticed that I put a round in too far forward. The back of the round wasn't touching the back of the magazine.

I was about to push it back where it belonged, but decided to fire it just how I put it in to see what would happen. I loaded the magazine the rest of the way properly.

The result was a stove pipe with an fired case holding the slide open.

Only misfire I've even had.

So, be sure you are loading the magazines properly.
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Old March 27th, 2017, 04:35 AM   #10
 
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My girlfriend and I both have the LC9s Pro and yesterday we hit 3,150 rounds through hers, and 2,950 through mine. No spring changes as of yet.
We have not tried many different types and brands of ammo. Federal American Eagle, Winchester Forged. Steel cased, seems to be carbon coated, AVOID AVOID AVOID! I had numerous rusty cases, we both had numerous misfeeds, she got some minor nicks in her fire control chassis that I was able to smooth out with fine emory cloth. Only reason we had it is because she went shopping for cheap range fodder, I generally avoid steel cased ammo in many guns.
We mostly shoot 124 grain Geco and Ruger ARX.
Neither of our guns have seen a single hollow point. We've still had malfunctions with brass cased ball ammo. We've NEVER had a malfunction with the Ruger ARX by Polycase. It is relatively new to the market and still relatively unproven in real world situations, but gelatin tests are impressive and there are a very few accounts of it being extremely effective SD ammo.

Keep the gun clean, detail strip the slide and clean the striker channel. I'm a freak about this as I've found a dirty striker channel to affect reliability in our and a few others. The other guys here in this thread can attest that I will rant for days on that subject. I have a video tutorial linked in another thread on how to tear it down.
I've also made another on how to tear down the frame, swap the trigger, and clean the FCG/chassis that I'll be posting up eventually.
I'll go ahead and link the first one here.

However, if it's being reliably unreliable under a particular condition, such as "towards the middle" of a magazine, that sounds like a mag issue, even though it's two separate magazines.
Is your 7 round mag the factory mag? I've heard some complaints of the 9 round mag being unreliable, and several testimonies that they run perfect for other folks.
You can try more ammo, or get a second 7 round mag and try that. You obviously have no problem spending premium money on premium ammo, I'd recommend trying the ARX. It's cheaper than these others you've tried, and has run perfect for us. Also has an approximate 1440fps mv, producing an authoritative magnum style "CRAACK!" versus a "POP!". I've also heard the larger calibers sound like a small jet engine going down range, that has to be a fun experience.
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Old March 27th, 2017, 04:47 AM   #11
 
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https://youtu.be/XnZ6n-V0iaY
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