This may seem like an incidental question, but, I have both the SD9mm and the SD40 (which I just purchased today). In loading the magazines for the 40 there is a distinctive rattle when it approaches full capacity. Does not rattle when empty. Neither of the magazines for the SD9 make any noise but very evident and pronounced in the 40. Is this a matter of importance? Or how might I eliminate the rattle? Have not fired the weapon as yet but could this affect operation and feed?

yep my sd40ve mags rattle. not an issue

take a small screw driver and push down on the bullets through the slide lock hole to re-seat the bullets.

I had an FNP9 that did the same thing. IF you fully load the magazine then "hit" the floorplate against the palm of your hand (BEFORE inserting it in the pistol!) it will reseat the rounds and reduce (usually eliminate) the rattle for that loading.

This is common with many brands and calibers of double column magazines. Sometimes slapping the magazine, baseplate down, against the palm of a hand or table top will stop the rattle, sometimes it won't.

However, what is universal is that you won't be able to move your hips fast enough to make that rattle noticeable at a normal walking pace, so you really don't need to worry about it if you are carrying concealed. Something else that is universal is that you and nobody else will be able to hear that rattle when you are shooting it at a range.

BTW, the above is a hint that this is not anything to get bothered by or worry about. So just ignore it.

I've found with slapping the floorplate AND the back side of some of my FS M&P40 mags the rattling goes away. The rattle is there with the mags of the Sigma 40 I used to own, my FS M&P40 & 40C. Some will rattle only when fully loaded, others when nearly full.

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Former USN, Retired US Army

its a common double stack issue, my glocks did it, my SD does it, my ruger did it.

download one round and it should stop.

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Fugitive Recovery Agent

This.

What I do is slap the backside of the mag (primer side) into my palm 2-3 times while I load a mag and I've not any rattlemags since. Its reflexive now, don't even think about it.

My only complaint with the SD40VE is the magazine rattle. Other than that this pistol is a gem. I wish someone made an aftermarket mag that did not rattle. I'd buy three or four. My son was getting ready to buy an SD40VE. I told him about the mag rattle and steered him to the SD9VE.

After I load my mag, I will hold it upside down and press down on the tip of the exposed round 4 to 5 times and it eliminates all rattle. Let me know if this works for u guys!

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Most guns I've owned had mags that rattle.no problems with them.ive found that as long as I keep my gun clean(I'm anal,1 round or 1000 rounds I clean)I have 0 issues.only gun I have that isn't that reliable is my Mossberg Plinkster.

I see where people say the rattle is because of double stack magazines.. Not true, I have Ruger and Springfield Armory guns that are double stack mags and they don't rattle at all. It is a Smith and Wesson problem not a double stack mag problem. You would think after all this time S&W would have figured it out, or do they just not care?

I received an e mail from Smith and Wesson today they tell me when the magazines get broke in from use they will stop rattling. I have yet to see where anyone on here reports that they have stopped rattling. Absolutely the worst customer service. Everyone complains but they don't seem to care. It speaks volumes to me. You live and learn, lesson learned.

When you walk down the street just sing that old Big Joe Turner song,
" I said, You gotta shake , rattle and roll...shake rattle and roll
Shake , rattle and roll ...shake rattle and roll ...
Well , you wont do right to save you're doggone soul "

Nobody will hear the rattle .

Actually the rattle in the mag comes from something not under spring tension...hence the rattle . Keep adjusting the rounds until everything gets pressed in place . A cleaning and lubing of the inside parts helps also .
Gary

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Certified Cajun
NRA Member

Disassemble the magazines. Spray everything with CRC silicone. Wipe it all off with a rag. Reassemble the magazines. Repeat often as needed. In a match on a rainy/muddy day, that could be rather often. (Have shot matches that had buckets of water on every stage to rinse out dropped magazines.)
I habitually slap the primer side of magazines to insure seating.
My magazines are reliable and don't rattle after the first few uses, if ever. Too bad the matches have shut down; sounds like you might enjoy learning about your gun.

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Science plus Art

Some mags just seem to do it, and all the "fixes"
don't do a darn thing.

This is correct. ^^^

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How many guns are too many?

I am very familiar with firearms being in law enforcement for 36 years and ex military. Like I said I have Springfields and Ruger double stacks and I have zero issues with them. It is only with my Smith and Wesson SD 40 VE. I was always told not to lube the insides of the magazines but I can try that, I just don't think thats the issue as I said I don't have it with my other makes of handguns

Off the top of my head, I have Glock magazines that rattle, Wilson 1911 magazines that rattle, and maybe M&P magazines that rattle.

No biggie.

Bill

This. ^^^^
Just turn up the radio. You will never hear it again.

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How many guns are too many?

KelTec P-11 mags rattle. There is a certain spot on them that if you squeeze them in a vise maybe .020" or so, the problem goes away. Never bothered me enough.

i have an hk usp 45. the 2 10 rounders never made a sound but i bought 2 factory 12 rounders and they both rattle with 12 in the mag. its just one of the rounds in the mag that have a little wiggle room. nothing to be alarmed about. btw. the rattle is less noticeable when the mag is inserted into the gun

It is a simple fix, don't carry it as plus one. I fill up the magazine, chamber the 1st round and leave the magazine 1 short.

When the mag is maxed, it also puts more force on the slide from the top round, you will notice it is much more difficult to lock in a magazine with a full magazine and the slide closed than when you are one short. Guns are not meant to be carried with a full magazine, at least I do not think they are. A full magazine should be inserted with the slide locked back.

Now as for carrying your backup magazine, guess you have to live with the rattle.

I too have several different ones that rattle when full, can't remember which ones off the top of my head though. Was always a double stack that does it though.

Rosewood

to be honest, its the way the magazine is made. There is at least 1 AR platform magazine maker who designed their mag to barely squeeze in 31 rounds. Seats easily with 30 rounds, and easy to rack the bolt. Careful follower and spring design can make the problem never occur.

It's up to the magazine designer. If Mec Gar can get 17 rounds in a magazine form factor S&W designed as a 15 round magazine, it can easily be made to not rattle. It needs to be a priority of the design team.

Yep some magazines rattle. My Mecgar Hi Power magazines will rattle at full capacity as well. Does not affect function!

All of my factory M&P double stack magazines full size or compact, 9mm or .40, rattle but none of them malfunction.

I've had these guns for YEARS. They indeed stop rattling after a break-in period. Leave them loaded, shoot them monthly, and in a few months it will gone. Not a reliability issue as others have pointed out.

If it bothers you, this pistol is not for you. Pretty simple.

To cause the rattle to start, did you use "snake oil" for lubrication?

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Bill

if you live long enough the rattling may not go away, you just won't be able to hear it.

No problem. I realized the rattle wasn't for me. In law enforcement jobs, sometimes you need to be quiet. I traded the gun for a Springfield Armory XD MOD2.