Question on Lead RN - MP-Pistol Forum

Question on Lead RN

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Old March 8th, 2015, 06:50 AM   #1
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Question on Lead RN

Hi,

New to this forum but not reloading and shooting.

My Dad recently passed away and I found 400 rounds of 9mm reloads while cleaning out his gun stuff. When he reloaded them he used a Lead Round Nose bullet. After he did that I warned him that he may have issues with them jamming. Sure enough he tried them in his old Walther P38 and he had jamming problems. At the time and until recently I did not have a 9mm so I never thought much about it. Seems he set them aside and just left them.

So here is my question, should I try them in my M&P Shield and shoot them if they don't jam or should I painfully and time consuming break them down and reuse the components. (Except the bullets which I would melt down and cast them into bullets for use with my S&W 38spl. revolver.)

I am hesitant to use them in the M&P Shield but just wondering what others think.

Thanks,
Dave
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Old March 8th, 2015, 09:53 AM   #2
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I'm always pretty hesitant to shoot someone else's reloads, you will have to use your own experience to know how careful he was with his reloading since a careless reloader can produce ammo that is outright dangerous.

As far as round nose lead bullets there's nothing wrong with that at all, I'm surprised the other pistol wouldn't feed them, remember that most 9mm ammo you buy is round nose.

Does he have them labeled with the details of the load? What kind of powder and how much, its always a good idea to put a slip of paper with the load details in with any reloaded ammo, if you have that information could you post it so we might look to make sure the load is safe.
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Old March 8th, 2015, 12:51 PM   #3
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Shouldn't be a problem, unless the lead is soft enough to cause a lot of leading in your bore.

I load cast 122gr TFP (truncated flat point) in 9mm quite a bit. It shoots great, but clean up (mostly from the bullet lube) is a bit more than when shooting jacketed bullets.

I'm sure you're aware of the kind of reloader that your Dad was.
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Old March 8th, 2015, 12:51 PM   #4
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No doubts about the ammo. It was my Dad who reloaded them. He was reloading since I was a kid. They are all marked as to powder, weight, and bullet weight. I just am not sure about feeding Lead RN as opposed to jacketed through the gun.

He was trying to feed them through a WWII vintage P38 complete with eagles and swastikas on the slide. The P38 always fed jacketed RN but had problems with the lead RN and also had problems with some of the hollow point varieties.
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Old March 8th, 2015, 02:21 PM   #5
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If the feed ramp isn't quite as good as it should be, the lead bullets being softer can hang up, but they should feed. Sometimes those older guns won't really feed anything but jacketed RN, I think that's why the first lead bullet design used for 9mm was the truncated cone, I never liked that design, but it did feed in the older guns.

Pretty neat having that old P38 with the Nazi markings intact, its always a shame to see a WW2 gun with the markings removed, we may not like the swastikas and things but that's the original markings, IMHO they should be left intact.
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Old March 8th, 2015, 04:09 PM   #6
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I shoot 125 gr. cast lead RN in my Shield as practice ammo frequently. No feeding problems here, the Shield loves them.
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Old March 8th, 2015, 05:05 PM   #7
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Quote:
Originally Posted by Holeshot View Post
I shoot 125 gr. cast lead RN in my Shield as practice ammo frequently. No feeding problems here, the Shield loves them.
Well, there you go!
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Old March 10th, 2015, 04:55 PM   #8
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Thanks for the comments. I am going to swing by the range this weekend and see how they work. If they are OK then I plan on using them for some IDPA practice sessions.
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Old March 11th, 2015, 06:54 AM   #9
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Not all lead is the same. Swaged bullets are made of very soft lead and may indeed cause feed problems in some guns since they deform rather easily. "Hard cast" bullets, as the name implies, are made of a much harder lead alloy and should feed well in most guns.
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Old March 18th, 2015, 04:33 PM   #10
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I have done some additional research on the subject. The M&P Shield has polygonal rifling. While S&W does not recommend against lead bullets, Glock does for their models with polygonal rifling. The general consensus I have found is not to use lead bullets with polygonal rifling so I figure I am going to pass on using these rounds in my Shield.
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Old March 18th, 2015, 07:23 PM   #11
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Who told you the Shield has polygonal rifling? I have a 9mm Shield and it has conventional cut rifling, I just double checked to be sure, and that is correct. Since I don't have a 40 I can't speak for that, but as far as I know, S&W doesn't make any firearm with polygonal rifling, I would seriously doubt if it has it either.
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Old March 19th, 2015, 03:16 AM   #12
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I haven't stripped my down to look as it is only a few weeks old. I found this post on a S&W forum.

M&P 9 Shield -vs- M&P9c
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Old March 19th, 2015, 03:38 AM   #13
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He had a number of issues in his post with the shield's specs it seems.
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Old March 19th, 2015, 08:19 AM   #14
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Two comments;

1. Yes, AFAIK, S&W has not used polygonal rifling in any of their handguns. Glock, H&K and Kahr (in some models) do but not S&W.

2. Soft lead (swaged bullets) can lead polygonal rifling rather badly which is why Glock recommends again lead in general since they don't know what you are using. Hard cast bullets are tolerated pretty well. If you use hard cast bullets in a Glock, etc., just scrub out the barrel every so often and you will be fine.

Last edited by Smith Shooter; March 19th, 2015 at 07:04 PM.
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Old March 19th, 2015, 09:34 AM   #15
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That's a perfect example of people posting things that are so completely wrong, I can't imagine where he even got that idea, Glock has polygonal rifling but not S&W. Its possible he knows better and just had a brain fart, it happens.
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