30 Round Seymour Magazine ?

[imntxs554]

I wish but I don't have ANY 30 Round SEYMOUR Magazines. All I Have known is that there Some Really Good Magazines to Shoot with. The 30 Round SEYMOUR Magazine I use to use before Trading it a long time Ago I use to Shoot with my '78 Iver Johnson. I came across these 3 that I just found after I misplaced them and when I was using them they seem to work most of time, so I got some new Springs for them but, I should of just left them alone. I don't know much about 30 Round Magazines. Now that I have found these 3 and was wondering if anyone knows anything about them. The ones I bought from CTD were Trash and I was wondering if anyone knew were to pick up some a couple of SEYMOUR 30 Round Magazines since were planning a Trip to the Ranch. All I have are these 3 30 Rounders that are okay but don't know if these are known to be Trash or has anyone used these brands before . 1. M2 2. AYP 3. N.V.S.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.

[imarangemaster]

M2 on left is aftermarket, usually not reliable.

AYP it is believed to be FN manufactured for post war European contract, IIRC. They are excellent mags, and I have several. (CTD was selling fake AYPs a couple years ago. They were OBVIOUS fakes).

NVS are believed to be Japanese manufacture. Usually good quality.

I would put new USGI springs in them if you can find them, and make sure the springs are oriented correctly, long side to the rear: /\/\/\/\/\/\/\/\/\/\ be the . the bottom of this illustration would be to the rear.

[painter777]

When cleaning mags,
I pull em apart. I check the follower for any sharp edges and if found lightly sand then down. Then check the feed lips to see if they have any sharp edges, if so, sand them smooth.
Good time to make sure the feed lips aren't bent in, out or downward. Sometimes you have to tweak them some. Good time to check the rear nibs that sometimes need a little pry out with a small eye glass screw driver. When inside the tube is clean, I spray oil.. then wipe it all out. I then use spray silicone inside. May just be me but the silicone seems to make the follower glide smoother and doesn't attract or hold dirt. When put back together see that your follower sets level and pushes down smoothly and evenly. Quicker done than it sounds. I've had mags I marked as problem mags at the range and looked over later, usually finding the top mag lips are the issue. I've watched guys slam a mag in the well so hard it bends in the rear tabs and pinches the upper lips inward or downward. If your not in a fire fight...... pushing in the mag catch is much easier on your pricey mags.

IMR, Thx for your schematic it always helps. I just try to remember the end loops point to the back.

Frank, I don't use 30's very often but when I do, I prefer Dos Equis ... sorry sidetracked. I've had good luck with the J marked ones, I believe they are post WWII and GI spec made by Jahn (?) but are cheaper out of pocket. ?

"Stay Loaded My Friends"

[jimb16]

J = Jahn Manufacturing. I think they are Korean era.

[imntxs554]

I don't use 30's very often but when I do, I prefer Dos Equis ... sorry sidetracked. I've had good luck with the J marked ones, I believe they are post WWII and GI spec made by Jahn (?) but are cheaper out of pocket. ?

@QUOTE=imarangemaster;488753]M2 on left is aftermarket, usually not reliable[/QUOTE]

Great to see you again rangemaster it's been a long time my and since I been wanting to talk to you for awhile now.

Thanks to both of y'all for the input on this, it looks like the PM's I had gotten from a couple of friends was spot on with what y'all had to told me already.

Thank Y'all Again !!!

[imntxs554]

M2 on left is aftermarket, usually not reliable

Great to see you again rangemaster it's been a long time my friend and I been wanting to talk to you for awhile now.

Thanks to both of y'all for the input on this, it looks like the PM's I had gotten from a couple of friends was spot on with what y'all had to told me already.

Thank Y'all Again !!!



---------- Post added at 07:45 PM ---------- Previous post was at 07:39 PM ----------

J = Jahn Manufacturing. I think they are Korean era.

Thank You JIM

[browningautorifle]

I had an M2 and an AYP and don't recall having any untoward trouble with them but I don't suppose I used them that much comparatively. I had an early hardback that I found in an odd place too, now it resides with another guy in Calgary. I doubt he actually knows what it is.

[Bruce McAskill]

The commercially made 30 round magazines made here in the US are considered to be JUNK. The standard USGI magazines are the top of heap with the ones made in Korea number 2. They differ a bit from USGI in that they are just a little bit lighter in weight BUT they function very well. And of course they are cheaper to buy. Don't confuse then with the Chinese made junk.

[DaveHH]

Charlie covered maintenance well. I second the remark about slamming the magazine into the carbine. This behavior also wears out the nubs on the rear of the magazine. The magazines of this weapon are a wear item. I believe that this is why they were ordered by the millions.
Another contributor to poor magazine performance is cartridge length. This weapon has one serious fault, if the cartridge case is even a bit too long, the bolt does not fully engage the locking lugs and the carbine can explode. It was such a serious problem that ammunition manufacturers were required to check 100% of cases before completing the cartridge. With this in mind, if you reload this is important and the bullet must be seated at the proper depth. Cartridges with the bullet set too far out drag on the front of all magazines and interrupts the upward movement of the rounds in the magazine. It is perhaps the single biggest cause of jams when using reloads. The 30 round magazines are the most affected ones because of the bend.

[painter777]

Dave,
Your post reminded me of a picture I found on a auction carbine. Took a long time to find it. I often wonder how much wear the bottom of mag catches get and if that causes them to sit lower. This picture shows one guys cure for it.



Post link: https://www.milsurps.com/showthread.php?t=64002&