Springfield/Warren 9mm 1911 Endurance Test: Report #23

15-Jun-13 – 10:42 by ToddG YouTube Preview Image
42,339 rounds 12 stoppages 0 malfunctions 3 parts breakages

As you can see from the video above, the pistol suffered its 12th stoppage (and the first gun-induced problem in more than 9,000 rounds since the ejector was replaced by Springfield Armory Custom Shop). It failed to go completely into battery after firing. Simply tapping the magazine at the beginning of a Tap-Rack correction was enough to resolve the problem… which is a good thing, because I didn’t rack the slide properly and wouldn’t have ejected the round if it had been the cause. Doh.

For the math geeks, Mean Rounds Between Stoppage (MRBS) is now 3,528. So if I had to shoot all thirty-one of the rounds I normally carry with me when I CCW, there is a 1-in-114 chance that I’d have a stoppage.


Also since the last report, one of my Wilson ETM training magazines stopped working with my carry ammo (Federal P9HST3). The gun experienced a failure to feed with the cartridge horizontal and getting stuck on the feed ramp. (see photo, left) It happened with every single round of the hollowpoint even though the magazine continued to run properly with ball ammo.

I tested multiple other training magazines and also emptied two of my three carry magazines with no problems. So, I simply threw the finicky magazine in the trash.

The gun was used for this month’s KSTG match at the NRA Range. I came in second place for reasons that certainly had nothing to do with the gun. A video of one of the stages was posted here earlier this week.

Probably the best use of my time was spending Friday with some friends & accomplished shooters including Ernest Langdon. Ernest was essentially the foundation for my entire approach to shooting a handgun so any time on the range with him is beneficial. I asked him to watch me run a few reloads and he immediately identified one of the biggest problems I’m causing by rushing the insertion faster than I can see what I’m actually doing:

YouTube Preview Image

know better. I’ve even talked about it online and put time into tweaking my technique to do this. But having a great diagnostician watch you make mistakes is definitely the fastest path to correcting them

Ernest then proceeded to kick my butt on the plate racks as posted earlier this morning. Because he’s Ernest Langdon.

Ernest’s advice definitely helped, though. After spending the morning shooting in West Virginia I drove to the NRA Headquarters and got in some additional practice. I ended the night on a personal best F.A.S.T. with the SACS/Warren gun:

  • 4.27 (clean / 1.36, .33 / 2.04 / .18, .19, .17)

Holster was a JM Custom Kydex aiwb carried underneath an untucked polo with Custom Carry Concepts BMC mag pouches. Ammo was CCI 124gr mil-spec encapsulated 54882 at 1,230fps.

That’s the last shooting I’ll be doing for three or four weeks so it was nice to end on a high note. Check back in July for another update. We’re closing in fast on 50,000 rounds!

Train hard & stay safe! ToddG

You can also follow and discuss via the pistol-forum.com 2012-2013 Endurance Test thread.

Previous Springfield/Warren 9mm 1911 Endurance Test posts at pistol-training.com:

  1. 12 Responses to “Springfield/Warren 9mm 1911 Endurance Test: Report #23”

  2. What do you think caused the (FTRTB) malfunction? Weak recoil spring?

    By JV on Jun 15, 2013

  3. JV — Doubtful it’s the spring. The spring is 2# heavier than factory recommended and had less than 2,000 rounds on it when the stoppage occurred. I’ve been replacing the spring every 5k with no observed problems.

    The gun had been lubricated the night before but not cleaned.

    The round that fired immediately preceding the stoppage had a normal report and recoil.

    By ToddG on Jun 15, 2013

  4. Hmmm…could it have been the magazine? Or extractor tension perhaps? Sometimes when it’s too tight it can hang up on the rim of the case and slow things down a little.

    By John on Jun 16, 2013

  5. It could have been any of those things.

    However, the same magazine, gun, & ammo have successfully fired about a thousand rounds since the stoppage. So even if it was one discrete part or problem, it’s not consistent enough to identify.

    By ToddG on Jun 16, 2013

  6. Ernest simply rocks. Very jealous of you.
    Since I’m lazy, can you tell us this gun now compares to other guns you’ve tested for MRBS?

    By Rob E on Jun 16, 2013

  7. Robbie —

    M&P9: 20,778 MRBS
    chance of stoppage firing 35 rounds carried, 0.17%

    P30: 7,608 MRBS
    chance of stoppage firing 31 rounds carried, 0.41%

    HK45: 16,667 MRBS
    chance of stoppage firing 21 rounds carried, 0.13%

    Glock 17: 3,751
    chance of stoppage firing 35 rounds carried, 0.93%

    SACS/Warren 9mm 1911 as of today: 3,528 MRBS
    chance of stoppage firing 31 rounds carried: 0.87%

    I think it’s worth noting that all the guns with less than 10k MRBS had significant reliability issues early on. If you take the first 10,000 rounds out of the equation the numbers start to look a lot more even.

    By ToddG on Jun 16, 2013

  8. Any chance you can take a look at some of those alternate perspectives on the data? Things like MRBS in increments (0-10k, 10k-20k rounds…) would be really cool to see. That said, even the “worst performing” gun based on the stats you show has been a very reliable performer – so it may not be overly illuminating.

    By dan-o on Jun 16, 2013

  9. dan-o — The data is available here if you’re willing to go back through all the old reports.

    By ToddG on Jun 16, 2013

  10. How many rounds through that magazine? Did it get cleaned? How about a spring replacement? Sometimes a weakened mag spring shows up as “odd things”. Ball ammunition hits the feed ramp differently (usually higher) than hollow point or “non ball” profile bullets, so they may feed just fine. Something that seems to help fix magazines is the rebuild kits from Tripp Research.

    By mer on Jun 17, 2013

  11. That’s the problem though – if it only happens once in a blue moon, it could be the one time that you need it…

    Hope it sorts itself out

    By Tara on Jun 20, 2013

  12. Don’t throw the mags in the trash, let Wilson know and they will either fix it or replace it. They have a great warranty on mags.

    By Jon on Jun 21, 2013

  13. What Jon said.
    Also, I had trouble with a bunch of mags from two different manufacturers a while back, but it turned out the gun really hated the brand of .22 ammo I had 2,500 of. I mean really hated it so only the first round out of 10 in a mag would feed. A different brand of ammo cleared that up. Of course, my rifle also hates that brand, but not with the same antipathy. It puts it all downrange without key-holing, but it doesn’t really care where.

    By Windy Wilson on Jun 24, 2013

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