.45 Shield- Potential Issue

sandog

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For 4 1/2 years I've been telling everyone how great the .45 Shield is.
7+1 rounds of .45 ACP in a thin, light, controllable and accurate package.
I still like mine, still have confidence in it and will continue to carry it daily, but I've identified an issue that should concern anyone that owns one.

Mine has fed reliably with everything I've shot in it, Winchester Rangers, Remington Golden Sabers, Sig V-Crown, and Winchester Defend JHP. And all brands of hardball.
But it has bobbled a couple times with Speer 200 grain Gold Dot.

I know, some of you are saying, "Well just don't use Gold Dots!".
Problem is half of my JHP stash is Gold Dots. The other half is Winchester 230 grain Defend.
And not likely to find anything else for a while unless I want to pay $2 or more a round.

I'd really like to carry the Gold Dots, partly because they expand so nicely and partly because I have 150 rounds of them.
The issue that has cropped up is the next round in the mag scoots forward under recoil and the tip of the bullet catches under the locking block, and stops any more rounds from feeding up to the chamber.
Like this:
t2j2QNKh.jpg

Now some of you will wonder how a round can scoot forward that much out of the mag.
Through out most of the mag well, there is no room to scoot forward. When the round gets right below the locking block, there is enough room for the round to go forward as shown in the pic.

When a gun fires and recoils backwards there is an equal and opposite reaction. This is Isaac Newton's third law of motion.
A scope will want to slide forward to counter the recoil, if not properly secured, and rounds in the magazine will also want to go forward.

So far this occurrence of a round catching under the locking block has only happened with the 200 grain Gold Dot.
The shape and length of the bullet has a harder time making it past that ledge under the locking block.
But that can also mean that other JHP brands are probably barely able to climb up past the ledge.

There was a guy on here, can't remember who it was, that said he had experienced the same issue with Gold Dots, and he took out his locking block and made a radius under the block.
I did that yesterday, and went out earlier and fired 3 magazines of Gold Dots with no jams.

That edge under the block had a pretty square edge, and rounding that edge is something others might want to consider, even if so far, they've had no jams.
Here is another shot of a round (Winchester 230 Defend JHP) that was caught under the locking block.
As I said before the Winchesters haven't got caught when firing but I happened to have them in the mag for the pic.
Also in this pic the ledge has already been rounded, or else the round would probably be even further forward.
WDci34Ah.jpg


Had I sent this back to Smith, I doubt they'd have done anything, and would have sent it back to me saying it was within specs, or to use a different brand of ammo..
My FS MP9 had a safety that would engage/disengage way too easy, I made it where the safety is stiffer. Smith would probably have sent it back to me saying the safety was working fine.

Also I have a Browning BL-22 lever, to eject a round you had to really snap the lever down hard. Work it easy and the empty would stay stuck to the bolt face.
I could remember to work the lever hard but others I'd hand it to forgot. I read on a forum where a guy took out the extractor and slightly dulled the sharp leading edge with some fine grit sandpaper.
I did that last week and now the .22 carbine ejects perfectly at any lever speed or force. How it should be.
Again had I sent it back to the manufacturer they'd most likely say nothing was wrong with it.

Sometimes I just have to fix the small things on my own.
Just thought I'd throw this out there.
Take off your slide, and with the mag part way out, take a screwdriver or other tool and push forward on the top round until it is under the locking block.
If you just slap a mag in there and no firing has happened, the rounds will all stay against the back of the mag.
Scooting that round forward manually will simulate where that top round could end up under recoil.

There is no reason to have a square ledge under the locking block that you can hook your fingertip under.
Rounding it gave me some peace of mind, and made my .45 Shield just a bit better.
I'll fire off some more Gold Dots before I start carrying them again, an awesome round provided the pistol will fire them reliably.
 
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Sandog, I've never experienced that hangup but I'm still interested in the rounding of the feedramp edge. Can you post a little clearer photo of the edge that you modified?
 
I'm not sure I could get a better pic without taking the locking block back out. I thought after I got it back together that I should have taken a "before" and and "after" pic while the locking block was out.
I'll take it back apart in the next few days and add another pic.

Not sure I would go so far as to make that edge the mirror image of the feed ramp above it, but any rounding at all of that squarish edge will help.
After using a grinding bit on the Dremel I then used a felt bob with polishing compound to make it smooth.
 
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Notwithstanding the rather large hollow point cavity in the Gold Dots, it seems odd to me that the nose of the next live round in the top of the magazine would impact below the feed ramp of the barrel as (or if) it moved forward in the magazine during firing. Forward movement of the round should be limited or restricted by the front of the magazine tube. Does the top portion of the front of the magazine not come up to just below the barrel's feed ramp when it is fully inserted? (with barrel laying on the locking block) Can't really tell from your photo, but it looks like the magazine itself is down a bit lower than it would normally be when inserted and locked by the mag release.

Perhaps weak magazine springs are also contributing somehow to the problem, as a weak mag spring will not support the follower properly, or exert proper (adequate) pressure on the live rounds contained in the magazine??

If what you are describing is indeed the problem, and you have found the solution, perhaps you should contact S&W with a description and some photos of the malfunction?
 
Sandog,
After looking at your photos again, I decided to get my 45 Shield out to examine it more closely. My locking block/feed ramp does not look quite the same as yours. The very top/front wall of my magazine does not extend under the locking block feed ramp. With my magazines and followers, there is no way for a round to get trapped under the feed ramp. I am not questioning your issue AT ALL, I think we are seeing slight variations in the fitting of the magazine catch and the locking block/feed ramp and or a different generation/design of locking block/feed ramp.
I took the guts out of my magazines so hopefully the photos will show the alignment of the front of my magazines with the locking block/feed ramp.
My 45 Shield should be a fairly early one, as I was working in a gun shop at the time and my sales rep. for one of my distributors got mine to me as soon as he had one available. My s/n is: HNS16XX.
 

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mckenney99 is correct. Looking at mine I can't see where this could happen as the the front edge of the mag won't let the nose of a bullet go far enough forward. Looking at sandog's first pic, that mag doesn't look as if it's fully seated in the frame. The feed lip should be less than 1/16" from contacting the ejector, however sandog's looks to be well below.
 
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Good pics, mckenney showing the top edge of the mag in relation to the locking block.
My Shield has an HNM prefix so is likely slightly older than yours.

Funflyer, yes, in my pics the mags aren't inserted all the way, as I said if I just shoved a mag into the gun all the rounds would be to the back of the mag.
And yes they are all factory mags.
I should have tried to "recreate" my jams mckenney's way with the followers removed.


When the jams with Gold Dots happened at the range must have been a year ago, the round was nosedived down, and I assumed I had the same problem as the other poster who said in an older thread that he rounded the bottom of the block.
I've been thinking all this time since that I should get around to rounding that bottom edge and seeing if that solved things, but maybe it wasn't necessary at all.

I am trying to remember if that was before S&W sent me several updated followers last spring.
It's possible that the newer followers were meant to prevent jams such as the ones I had.
I never had any malfunctions with the old followers, at least until I tried the Gold Dots.
 
ultra, they are +P. Not sure if that would make any difference though, the +P 200 grain Gold Dot is only 30 fps. faster than the standard pressure load.

I just put an empty magazine in and depressed the follower out of the way. You guys were right, the mag body goes up far enough to cover al of the locking block below the feed ramp.

I was going off a foggy memory of seeing one of those Gold Dots stuck 1/2"-3/4" below the feed ramp, in combination with the old thread where the guy talked about the bottom edge of the locking block needing rounding and smoothing.
I was all proud thinking I had fixed the issue when I fired several mags of the GD's without a hitch.

Now I realize that it must have been the old style followers that caused that particular malfunction.
I remember around that time last spring seeing a thread about the old and new followers, and a phone rep at S&W sending me 4 new followers to swap out.
Gonna go out this afternoon and shoot some more of the Gold Dots.
 
While it's hard to imagine that there are any Shield 45s still out there with the old-style followers, I suppose it is possible. Here is a post that shows the the difference between the old ones and the new ones:

http://smith-wessonforum.com/140786475-post5.html

To install the new followers, you will get to experience the pleasure of re-assembling your 7-round magazines. Here is a link to a thread that gives a variety of tips about how to do that. The owner's manual is of little help.

Shield .45 7-round magazine reassembly tip

The 7-rounders become easy to re-assemble with practice. Fortunately, you won't have to do that very often. It is all worth it, however, as the Shield 45 is a great carry pistol. Mine has over 7,500 rounds through it, and I'm very happy with it.
 

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