Grendel mags?

[stanc]

Sorry, did not mean that the way it sounded. How bout: "there is a visual depiction of the issues caused by the narrow stack in an earlier post which may prove informative".

Nope. That's saying the same thing, just in different words.

As I said, I understand the issues, so I won't learn anything I didn't already know by going back and rereading your earlier post.

Sure, you could make a Grendel / 6.8 pmag if it did not have to fit in standard mag wells. I'm sure there would be a huge market for that! From memory I think there is at least one plastic AR-10 mag. (Magpul 20 rd??)

wait, I see a market for filler blocks to allow AR-10 mags to be used in grendel barrelled AR-10's.

Ah, sarcasm. Ain't it fun to indulge in?

But, I think such an extra-thick walled magazine would fit in standard mag wells. The reason I doubt it'd be viable is because the closer spacing of the cartridges might not align properly with the feed ramps, and also because most shooters wouldn't like the extra-long mag.