My followers jamb like that also if I do to them what I saw in the video, yet in 300rnds of live fire, it hasn't done it once.
Is it possible that recoil is driving the tips of your bullets under the feed ramp, due to the increased mag internal length, and then the bolt is tipping them the rest of the way?
That's a plausible idea but I can't say for certain what exactly is causing it. I wish I knew but for now I'll have to stick with my AICS mags. I'll hold onto these in case there is a redesign of the follower.
Due to only being able to recreate the issue under live fire and only having my match gun to test them in, I don't want to put the extra rounds down the tube to try and figure it out.
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