What's up with plastic Mags?

[JMIS]

I shot the PA State Rifle Match yesterday. On two stages where I had to make a mag change my plastic mags would not set in. I had no problems with regular old AR mags, only plastic. I tried a Magpul and a brand new Lancer. Both mags did not feed or seat in the gun. I lost what I guess to be at least a minute and half of time because of this. Anyone else run into problems like this before?

[Rosco the Iroc]

No I say metal with my mags.

[bac0nfat]

I use exclusively magpul p mags and I've never had a problem.

[Andrew17019]

I've been using PMags for years and have never had that issue on countless ARs and M4s. Were you trying to insert a full magazine into a gun with a closed bolt? That may have been an issue...

[IronButt]

I have 10 P-mags & I've never had a problem with them. I usually download them 1 round though. Also, at the range I only load 25 per mag. It's easier for my old brain to keep a round count that way.

[JMIS]

I've been using PMags for years and have never had that issue on countless ARs and M4s. Were you trying to insert a full magazine into a gun with a closed bolt? That may have been an issue...

If I remember correctly... one with closed bolt and one open bolt.

[JMIS]

I have 10 P-mags & I've never had a problem with them. I usually download them 1 round though. Also, at the range I only load 25 per mag. It's easier for my old brain to keep a round count that way.

I was thinking of only loading 25rds in a mag with a range test.

Does a P-mag swell up when laoded to 30? That's what I'm thinking.

[Finch00]

I use exclusively magpul p mags and I've never had a problem.

me too

i just have a couple pmags

[Andrew17019]

I was thinking of only loading 25rds in a mag with a range test.

Does a P-mag swell up when laoded to 30? That's what I'm thinking.

If anything, it's the opposite way around with metal mags (if you're using standard issue mags) being more flexible to tighter or looser tolerances. Have you tried using the harder HK mags to see if this problem still existed?

[JMIS]

If anything, it's the opposite way around with metal mags (if you're using standard issue mags) being more flexible to tighter or looser tolerances. Have you tried using the harder HK mags to see if this problem still existed?

Never tried the HK mags.