Brass or Steel

[ajsalz208]

Went shooting today and had a HUGE issue with ammo jamming. The rounds weren't coming up high enough, after market clip, and then getting jammed below the barrel opening in the receiver. I have never had this issue before. I was using steel casings, and not brass like I normally do. Is this the issue?

[Phosphorus32]

I wouldn't think the casings are going to be an issue. I haven't used any aftermarket mags, so no direct experience. I've never had any problem feeding any type of ammo to my SKSs with the stock integral magazine. Does everything feed okay with the stock mag, or is that long gone?

Were your brass cased rounds FMJs and your steel cased rounds hollow points? I ask because perhaps your aftermarket mag is just barely feeding the tip of the bullets in your cartridges above the feed ramp of your SKS so that FMJs clear, but when you use HPs the tip gets caught. 

Hopefully someone else will come along and have better advice about the follower on the mag or feed lips or something 

[ajsalz208]

It worked great last time I used it, before I changed out the mags stock to 30. The 30 is a plastic Tapco brand. My model D is meant to accept AK mags too, is that the issue with buying a SK mag? Steel were standard point.

Here you can see where the bullets were jamming on each side.

[Power Surge]

So you were using a Tapco plastic AK mag? Don't take this the wrong way, but are you SURE it was fully seated? I own 6 AK mag SKSs and I can tell you that it's pretty easy to click a mag in and THINK it's in right, when in fact the front tab is UNDER the lip on the receiver. That will make your rounds feed real low.

[ajsalz208]

So you were using a Tapco plastic AK mag? Don't take this the wrong way, but are you SURE it was fully seated? I own 6 AK mag SKSs and I can tell you that it's pretty easy to click a mag in and THINK it's in right, when in fact the front tab is UNDER the lip on the receiver. That will make your rounds feed real low.

I have a Tapco SKS mag. Good question; I will take a look at how its seating. It was clicked in, but maybe not correctly.


*Just checked, tried having it not sit in right, not even possible. Ill check my stock to see if something is causing them to sit too low. Also gonna look at my stock mag to check for any differences.*

[Power Surge]

So you were using a Tapco plastic AK mag? Don't take this the wrong way, but are you SURE it was fully seated? I own 6 AK mag SKSs and I can tell you that it's pretty easy to click a mag in and THINK it's in right, when in fact the front tab is UNDER the lip on the receiver. That will make your rounds feed real low.

I have a Tapco SKS mag. Good question; I will take a look at how its seating. It was clicked in, but maybe not correctly.


*Just checked, tried having it not sit in right, not even possible. Ill check my stock to see if something is causing them to sit too low. Also gonna look at my stock mag to check for any differences.*

You mean a duckbill style mag? I thought you said you had a D?

[ajsalz208]

I have a modified D series.

[Power Surge]

I have a modified D series.

What makes you think that's a D?

[Loose}{Cannon]

Nose down tapco... Typical

Take 1/8" off the front of the feed lips.  Report back

[running-man]

I have a Tapco SKS mag. Good question; I will take a look at how its seating. It was clicked in, but maybe not correctly.


*Just checked, tried having it not sit in right, not even possible. Ill check my stock to see if something is causing them to sit too low. Also gonna look at my stock mag to check for any differences.*

You mean a duckbill style mag? I thought you said you had a D?

Terminology is *very* important in questions like these ajsalz208. 

Based on your previous posts, you do not have an SKS D: http://sks-files.com/index.php?topic=2133.msg24605#msg24605

You have a standard type 56 with an aftermarket stock and aftermarket magazines.  Saying you have a D when you don't only serves to confuse and makes everyone spin their wheels going after issues that cannot be there.

Beyond that, nobody here is going to bust your chops for calling things by various generic names, but to get tot the root of the problem, we've gotta know that it's a standard type 56 in an aftermarket stock with a duckbill tapco mag. 

[ajsalz208]

Its a DP, sorry.

[Loose}{Cannon]

And.... Make sure duckbill is seated properly first.

[Power Surge]

I have a Tapco SKS mag. Good question; I will take a look at how its seating. It was clicked in, but maybe not correctly.


*Just checked, tried having it not sit in right, not even possible. Ill check my stock to see if something is causing them to sit too low. Also gonna look at my stock mag to check for any differences.*

You mean a duckbill style mag? I thought you said you had a D?

Terminology is *very* important in questions like these ajsalz208. 

Based on your previous posts, you do not have an SKS D: http://sks-files.com/index.php?topic=2133.msg24605#msg24605

You have a standard type 56 with an aftermarket stock and aftermarket magazines.  Saying you have a D when you don't only serves to confuse and makes everyone spin their wheels going after issues that cannot be there.

Beyond that, nobody here is going to bust your chops for calling things by various generic names, but to get tot the root of the problem, we've gotta know that it's a standard type 56 in an aftermarket stock with a duckbill tapco mag. 

He also said above his model D is made to accept AK mags as well.....which confused the situation further.

[ajsalz208]

I have a Tapco SKS mag. Good question; I will take a look at how its seating. It was clicked in, but maybe not correctly.


*Just checked, tried having it not sit in right, not even possible. Ill check my stock to see if something is causing them to sit too low. Also gonna look at my stock mag to check for any differences.*

You mean a duckbill style mag? I thought you said you had a D?

Terminology is *very* important in questions like these ajsalz208. 

Based on your previous posts, you do not have an SKS D: http://sks-files.com/index.php?topic=2133.msg24605#msg24605

You have a standard type 56 with an aftermarket stock and aftermarket magazines.  Saying you have a D when you don't only serves to confuse and makes everyone spin their wheels going after issues that cannot be there.

Beyond that, nobody here is going to bust your chops for calling things by various generic names, but to get tot the root of the problem, we've gotta know that it's a standard type 56 in an aftermarket stock with a duckbill tapco mag.  thumb1

Ive looked into the DP so much, i forget to refer it to a standard.

[running-man]

No worries, we're all on the same page now. 

I''m not too experienced with aftermarket anything on an SKS, but I'd say LC's advice is probably correct, feed lips need a bit of trim to get the nose of the bullet up enough to clear the entrance to the chamber.  It might be that these rounds you're using have a bit longer OAL than the brass cased stuff you were using and it's just enough to cause a consistent jamming problem with them. 

Go slowly, take your time when trimming anything, and make sure to test the fit often so you know when you've gone far enough.  I'd hate for you to wind up with a paperweight.

[ajsalz208]

Thank you, and yes definitely going to look at the feed lip. Glad to know its probably not the ammo.

And after today im thinking a 30rd might be too much. Going to looking a 10 and 20 rounder also. I just didnt like the stock built in one. For the future, do I go poly or metal?

[Loose}{Cannon]

Tapco mags are about as reliable as aftermarket mags get, but they may require tweaking.