Are your mags marked? I ask because of the mag design. Could it actually be the mags in these feeding/extraction issues?
It would be interesting to see if the same mag is present for the malfunctions.
Are your mags marked? I ask because of the mag design. Could it actually be the mags in these feeding/extraction issues?
It would be interesting to see if the same mag is present for the malfunctions.
I mark all of my mags with a unique identifier, so I do watch for that. I'm rotating eight mags with Shield(2), and it doesn't source to a mag by individual body or by capacity. With Shield(1), issues didn't follow a particular mag, and there were only 1-3 at any given time with that gun.Originally Posted by SkyLine1
What are thinking with the mag design?
الدهون القاع الفتيات لك جعل العالم هزاز جولة الذهاب
I'm no expert, looking at the mags and how it is staggered and not a true single stack I could see how spring tension could be an issue. I've noticed on my mags the follower hangs up once in a blue moon/seems to tilt too much side to side (2 flush and 3 extended). Could be me over thinking it though.
UPDATE (03/20/2014)
Ammunition run-down for today:
100rds PPU Prvi Partizan 115gr FMJ
I had Shield(2) with me last night during some down time on the range. During a run of the Nebraska BUG course (shot first) I had a FTE with the PPU at round #15 of the 25rd course. That part of the stage is a D5 from concealment at the 5yd line. Later, I shot the new FBI Q course and had an identical FTE on stage 2 during a D3 from concealment at the 5yd line. That was about round #52 or so for the day. The balance of the COF went fine. I didn't have a camera with me, but the cases in both FTEs were horizontal, mouth forward, and were cleared easily. Ejection through the 100rds was erratic, with a number rearward. As always, I don't get too excited about that until the gun stops.
The PPU functioned fine during a range session on 01/04/2014, which was also reported here.
Total rounds on Shield(2) this session: 100
Shield(2) cumulative total: 2014
الدهون القاع الفتيات لك جعل العالم هزاز جولة الذهاب
I have a case of PPU 9mm 115gr that I got in trade from the company due to the first case of ammo I had bought having primers made of armor plate or something.
This case has been shooting fine, but I note that recoil is erratic. I think their powder charge is on the light side, and in some rounds lighter than others. Twice now I have unloaded the gun to be sure I didn't just have a squib.
I'd crono this stuff to see what the velocity is but my crono died on me. Just an observation ref the ammo quality potentially being an issue.
Good info, thanks Chuck.
After I shot the Shield, I ran another 50rds of the PPU in my G17. No issues, but it's not a direct or fair comparison for any of them. I have a few more boxes of the PPU and another couple of Shields in house. I'll chrono and compare.
الدهون القاع الفتيات لك جعل العالم هزاز جولة الذهاب
This is a photo of brass extracted from a 9mm shield.
124 grain +p Win PDX1
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
Is this what a potential case blowout looks like?
I don't reload at all anymore, but I would never, ever, ever even try to resize a case that looked like that. As my Russian friends would say: "Dis iss proeblehm..."
I also fired several other types of ammo:
Primers:
124grain+p WIN PDX1
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
115 grain +p+ GD
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
I think those look fine.
Hornady 135gr+p
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
Those appear fine as well
124gp+p HST
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
Some other possible pressure signs I observed were a slight bulge at the base of the case on some HST ammo:
HST
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
Potential issue close up https://onedrive.live.com/redir?resi...t=photo%2c.jpg
Another photo https://onedrive.live.com/redir?resi...t=photo%2c.jpg
The 135 grain+p Hornady did not show any extreme signs like the Winchester but the cases show, for lack of a better term...a doughnut style enlargement at the base of the brass. Not extreme, but noticeable on some brass.
Some of them look like this:
135 grain critical duty +p brass: https://onedrive.live.com/redir?resi...t=photo%2c.jpg
And
https://onedrive.live.com/redir?resi...t=photo%2c.jpg
I have about 200 rounds of the 135 grain +p through the gun, and all fed/fired/extracted without issue.
Would you guys be concerned if you observed this kind of marks or defamation on the ejected brass?
Brother, ALL of those primer pictures flat scare me. They all look like they're exhibiting dangerously high pressures. We train with M882 NATO ball, which if fairly hot ammunition, and I've never see primer flow-back and near cratering like what you're seeing. I would seriously forward those photos to S&W and ask them to take a HARD look at your Shield!
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