Need help to diagnose a dented case problem - XDTalk Forums

robot · 11-06-2009, 10:25 PM

I've been carrying my Kimber daily for two weeks in Condition 2. Empty chamber, cocked and locked. I'm using a CMC 8rnd powermag+ magazine.

Today I decided to carry it condition 1 and looked at my rounds and found small dents near the rear part of the casing. here's a picture:

anyone knows why or how it got dented? is it caused when loading new rounds? or some internal part of the gun pressing against the case?

help!

Toocold · 11-06-2009, 10:58 PM

You two might have the same problem.

Magazine Spring Question XDs

VR4 · 11-07-2009, 12:18 AM

I get those on my brass but not that deep.

XDoug45 · 11-07-2009, 12:43 AM

Do you use some kind of loading tool that may focus pressure on that area? What order were those 3 rounds in the mag, bottom 3 or top 3? They seem to be sequentially deeper which seems like the rim on each case above may be compressing into it, but that would take one helluva mag spring. I can't see another way to cause that kind of mark...

robot · 11-07-2009, 12:53 AM

Those were the top 3.

you know what, it could be my UpLuLa causing that dent. I'll go check.

Jarhead1987 · 11-07-2009, 12:55 AM

Wow!

robot · 11-07-2009, 01:07 AM

hmm no. it's not the uplula. the UpLuLa (if it causes any dents) will cause on towards the front half of the shell.

I think I found the problem, sometimes when I remove my mags, I see this :

the top casing's rim is being pressed into the round below. I wonder why the round will strip forward like that.

MagicPie · 11-07-2009, 09:17 PM

While not as extreme, I have had a similar problem in the past with CMC, but it appears to stretch into many 8rd mag.

Basically, the spring pressure is too much, and causes the rounds to be pressed hard against the slide. At times the pressure causes a lot of friction and the top round that feeds into the chamber snags the round below causing it to not seat correctly in the mag. With the slide in battery and the round not seated correctly, along with the magazines overpressure, the cases get dented.
Worse problems come from the pressure of the round on the slide causing the slide to lose some rearward momentum, and thus not making a full slide cycle, causing a misfeed.

Try much better mags like Wilson Combat or Kimber Pro-Tacs, or simply stick to 7rd mags. As for me, I stay with Kimber Pro-Tacs with 7rds, and all my 1911 problems have disappeared.

robot · 11-07-2009, 11:14 PM

Magicpie: that sounds like the most logical problem I'm having. I'm using CMC mags which are reputed to be really good. I wonder if this problem plagues all 8 round magazines. I don't have this problem with the 10rnd mags though.

I'll try Wilson Combat mags or the Tripp ones.

thanks guys!

11-06-2009, 10:25 PM	#1
robot XDTalk 100 Member Join Date: Jun 2009 Location: Duvall, WA Posts: 216	Need help to diagnose a dented case problem I've been carrying my Kimber daily for two weeks in Condition 2. Empty chamber, cocked and locked. I'm using a CMC 8rnd powermag+ magazine. Today I decided to carry it condition 1 and looked at my rounds and found small dents near the rear part of the casing. here's a picture: anyone knows why or how it got dented? is it caused when loading new rounds? or some internal part of the gun pressing against the case? help! __________________ [ XD(m) .40 S&W \| PRP Trigger \| Pistolgear Magwell \| Dawson Fiber Front ] [ Kimber Stainless Custom TLE / RL II .45 ACP \| TruGlo Tritium G/Y Sights ] [ http://gunbot.wordpress.com \| http://www.youtube.com/user/gunrobot ]
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11-06-2009, 10:58 PM	#2
Toocold XDTalk Newbie Join Date: Jan 2008 Location: Anchorage, Alaska Posts: 13	You two might have the same problem. Magazine Spring Question XDs __________________ Stupid Hurts!
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11-07-2009, 12:18 AM	#3
VR4 XDTalk 1K Member Join Date: Oct 2008 Location: WA Posts: 1,289	I get those on my brass but not that deep. __________________ XDm 40. XDm 9 OD/ DGR / #16 / PRP Trigger/ Dawson FO's/PistolGear Magwell SA TRP 1911 w/Trijicon NS SA GI 1911 A1 Stag-AR-15 2T/ Aimpoint M2/ FAB Grip/POD / Geissele Hi Speed Trigger /CAA UPG 16 Grip / FSC556 Daniel Defense M4 / Aimpoint M3 / FDE Magpul Moe stock / FDE Magpul Moe pistol grip / FSC556 / Geissele SSA / MS2 sling WAHTF Mega AR build
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11-07-2009, 12:43 AM	#4
XDoug45 XDTalk Newbie Join Date: Nov 2009 Location: Vancouver, WA Posts: 28	Do you use some kind of loading tool that may focus pressure on that area? What order were those 3 rounds in the mag, bottom 3 or top 3? They seem to be sequentially deeper which seems like the rim on each case above may be compressing into it, but that would take one helluva mag spring. I can't see another way to cause that kind of mark... __________________ XD.45 Service w/Safety - SureFire X300 SA "Bi-Tone" Loaded 1911 - Mods in work Current Load: Golden Saber 185gr.+P
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11-07-2009, 12:53 AM	#5
robot XDTalk 100 Member Join Date: Jun 2009 Location: Duvall, WA Posts: 216	Those were the top 3. you know what, it could be my UpLuLa causing that dent. I'll go check. __________________ [ XD(m) .40 S&W \| PRP Trigger \| Pistolgear Magwell \| Dawson Fiber Front ] [ Kimber Stainless Custom TLE / RL II .45 ACP \| TruGlo Tritium G/Y Sights ] [ http://gunbot.wordpress.com \| http://www.youtube.com/user/gunrobot ]
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11-07-2009, 12:55 AM	#6
Jarhead1987 XDTalk 100 Member Join Date: Nov 2008 Location: Wichita, Kansas Posts: 498	Wow!
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11-07-2009, 01:07 AM	#7
robot XDTalk 100 Member Join Date: Jun 2009 Location: Duvall, WA Posts: 216	hmm no. it's not the uplula. the UpLuLa (if it causes any dents) will cause on towards the front half of the shell. I think I found the problem, sometimes when I remove my mags, I see this : the top casing's rim is being pressed into the round below. I wonder why the round will strip forward like that. __________________ [ XD(m) .40 S&W \| PRP Trigger \| Pistolgear Magwell \| Dawson Fiber Front ] [ Kimber Stainless Custom TLE / RL II .45 ACP \| TruGlo Tritium G/Y Sights ] [ http://gunbot.wordpress.com \| http://www.youtube.com/user/gunrobot ]
	Share

11-07-2009, 09:17 PM	#8
MagicPie XDTalk 500 Member Join Date: Jul 2008 Location: The only good state-TX Posts: 603	While not as extreme, I have had a similar problem in the past with CMC, but it appears to stretch into many 8rd mag. Basically, the spring pressure is too much, and causes the rounds to be pressed hard against the slide. At times the pressure causes a lot of friction and the top round that feeds into the chamber snags the round below causing it to not seat correctly in the mag. With the slide in battery and the round not seated correctly, along with the magazines overpressure, the cases get dented. Worse problems come from the pressure of the round on the slide causing the slide to lose some rearward momentum, and thus not making a full slide cycle, causing a misfeed. Try much better mags like Wilson Combat or Kimber Pro-Tacs, or simply stick to 7rd mags. As for me, I stay with Kimber Pro-Tacs with 7rds, and all my 1911 problems have disappeared. __________________ (~_~) Perfectly symmetrical violence never solved anything. - Professor Farnsworth.
	Share

11-07-2009, 11:14 PM	#9
robot XDTalk 100 Member Join Date: Jun 2009 Location: Duvall, WA Posts: 216	Magicpie: that sounds like the most logical problem I'm having. I'm using CMC mags which are reputed to be really good. I wonder if this problem plagues all 8 round magazines. I don't have this problem with the 10rnd mags though. I'll try Wilson Combat mags or the Tripp ones. thanks guys! __________________ [ XD(m) .40 S&W \| PRP Trigger \| Pistolgear Magwell \| Dawson Fiber Front ] [ Kimber Stainless Custom TLE / RL II .45 ACP \| TruGlo Tritium G/Y Sights ] [ http://gunbot.wordpress.com \| http://www.youtube.com/user/gunrobot ]
	Share

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