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3/22/2015 4:09:03 PM EDT
I have 10 Blackdog Machine Steel feedlips 25 rnd magazines.  They are all having the same issue.  When only loaded 10-15 rounds, they load great in my dedicated .22LR AR.  When I exceed that number, the nose of the .22LR tips downward.  Which causes FTF because the rounds nose dive into the feedramp.  I contacted BDM about the issue, they sent me new feedlips.  I still have the same issue.  I replaced all of them with the plastic feedlips.  Still have the same issue.

I am using CCI Minimags.

What could be potential causes of the .22 to dip its nose downward when loaded to full capacity?  Weak spring?  Follower does not have enough anterior pressure/material to push the nose upwards (I have the 2nd Gen followers already)?
3/22/2015 4:54:57 PM EDT
[#1]
? Try tamping the mags on the bench after they are loaded to seat all the rounds against the back of the mag.
Otherwise, I'm at a loss.

Dave
3/22/2015 7:11:24 PM EDT
[#2]
Quote History
Quoted:
? Try tamping the mags on the bench after they are loaded to seat all the rounds against the back of the mag.
Otherwise, I'm at a loss.

Dave
View Quote


Tried that with no success.  I tapped it a bit harder, then the .22 started to pop out of the mags.

I had a can of Federal .22.  They seem to have less wiggle up and down.  They appear to be oriented correctly and they cycled pretty well full loaded.

I loaded up another mag with CCI Minimags and the amount of up/down play was noticeable and significant.

I might see if I can pick up a couple boxes of other brands and see if I am getting similar results.

I am starting to regret selling my 10/22 now.  I might just have to pick up another one now.
3/22/2015 8:54:42 PM EDT
[#3]
I had the same issue briefly with my BDM mags.  No idea how, but eventually, the problem worked itself out, or i unknowingly did something.
3/23/2015 12:25:18 AM EDT
[#4]
it sounds like the inside of the feedlips may be a little rough from some kind of manufacturing process and are holding the rim a little more tightly than they should. if possible, disassemble the mags and grab a scrap of emery cloth and smooth the inside edges of the feedlips. it sounds like another poster just broke his in by running ammo through to smooth it out. I looked at mine and the feedlips are plastic.
3/23/2015 8:53:00 AM EDT
[#5]
Sounds like a strange issue for Blackdog mags. Though I sold all mine and replaced them with 100% reliable SW M&P 22 mags and better mag adapter, I like to have last shot hold open too.. The Blackdogs I had all worked very well.

I do not suppose you have a different dedicated upper you could try them in? What upper are you running them in?

I did keep my Blackdog 50 round drums. They are flawless also.

Maybe load them all up and let the mags set a few days loaded.. Maybe they just need some breaking in..

I do not remember if the Black Dogs springs go a certain direction, but maybe the springs are installed backwards for some reason, if they  even can be, and are not putting the pressure properly on the follower?.

Good Luck

3/24/2015 2:35:54 PM EDT
[#6]

Quote History
Quoted:


Sounds like a strange issue for Blackdog mags. Though I sold all mine and replaced them with 100% reliable SW M&P 22 mags and better mag adapter, I like to have last shot hold open too.. The Blackdogs I had all worked very well.



I do not suppose you have a different dedicated upper you could try them in? What upper are you running them in?



I did keep my Blackdog 50 round drums. They are flawless also.



Maybe load them all up and let the mags set a few days loaded.. Maybe they just need some breaking in..



I do not remember if the Black Dogs springs go a certain direction, but maybe the springs are installed backwards for some reason, if they  even can be, and are not putting the pressure properly on the follower?.



Good Luck



View Quote




Have you tried cleaning your black dog mags?




Not trying to threadjack but I got a better mag adapter and with it in my M-16, I couldn't get the bolt to move as the adapter rubbed on it.




Is the adapter compatible with the sear trip?
3/24/2015 4:22:03 PM EDT
[#7]
Sorry I would not know about using it with the trip. Someone else may have and will let you know..
3/24/2015 8:11:42 PM EDT
[#8]
Springs in backwards sounds like something to check.

I run BlackDogs and Cmmg/Cieners in my DPMS
3/25/2015 5:44:58 PM EDT
[#9]
Have you tried the anti tilt followers?  I bought a few mags from their clearance section last year and they had a new anti tilt follower design that they were giving away free of charge at that time! Might be the problem.
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