MDT 12 Round 223 Polymer AICS Mags for Long COAL

swavescatter

Pain in the butt!
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Apr 3, 2021
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Has anyone run these yet?


I picked up a couple to test out in my XLR. Their claim of 2.48" measures out, and is just above what I estimated 77 TMK's seated optimally would need. I'll run some testing and report back. Hopefully they feed great...

Here's a shot compared to my Waters Mag, AI Standard mag and the new MDT (those are Black Hills 77 TMK's, loading up some handloads soon in Starline brass).

MDT mags.jpg
 
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swavescatter

swavescatter

Pain in the butt!
Joined
Apr 3, 2021
Messages
1,324
Just ran through two of these today. Been doing slow load development and only had 22 rounds left. Couple thoughts:

I could only fit 11 rounds per mag. The way the feed lips are it's a little odd to push the cases down. Probably could have forced another in.

So far, both mags fed flawlessly.

All in these are now my go to for AICS 223. Will update with more use.
 
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