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Magpul Mags and a 6 BR ?

Works fine for me. I've never bothered with a video.

It has worked so well for me that I've never understood all these mag kits to get the $100 mags to feed when the $35 ones do it out of the box. Maybe I'm just lucky that my mags sit perfect. Who knows?
 
I’ve got a 5 rounder for my Origin .22BR. I like it EXCEPT if something pushes up on the mag, the lug hits the top of the mag and stops.
I’m pretty sure I could cure it pretty quick with a file if I’d just take the time. Feeds fine otherwise.
I also have the MDT BR mag. Good mag, feeds great, but it’s $90, big, long, and heavy.
Honestly, I run the Magpul 90% of the time and just dont push on the bottom of it (it gets single fed most of the time anyway).
Bear in mind, I’m not shooting PRS matches with it either (at least not yet!)
 
The magpul mags have been the most reliable for me with 6BR through an ARC Nucleus. They’re the only mag I really trust. I’ve had major crash-and-burn mag failures with everything else I’ve tried.... MDT dasher/br mags, AICS mags, Accurate mags, ARC mags... ARC mags are the second most reliable until they get dusty, them ooops.

I sand/contour/shape the top of the feed lips on the magpul mags for smoother feed and stopping interference with the bolt when pressure is placed on the bottom of the mags.

I feed all of my BR cases in a column at the back of the mags. They usually start to bind during loading after 2 or 3 rounds, so I use a pen/pencil to push down the front of the follower as I load the mags.