Your question makes no sense.
Each one of those rounds requires a cartridge-specific magazine.
Mags are cheap the mags you need.

Now here's some useful mix-and-match mag info for you....

10 round 5.56 mag – 3 rounds of .458 SOCOM
20 round 5.56 mag – 7 rounds of .458 SOCOM
30 round 5.56 mag – 10 rounds of .458 SOCOM

The angle of the feed lips is a little different. 5.56s won't stay in a 6.8 mag, they all just come out on their own. I don't know about 6.5G, I would guess the same, since it's a fatter case than the 6.8. If you could get them to stay put, the mags are common lengths, my 25rd 6.8s are the same length as a 30rd 5.56, my 16rd 6.8s are the same as a 20rd 5.56. Internal dimensions, followers and feed lips differ from the 5.56 mags though.

For going the other way, with 5 and 10rd 5.56 mags, I have fit 4 rounds of 6.8 in a 10rd pmag with a 5rd limiter, and 7 without the limiter. Any more than that and the rounds start to bind because of the extra diameter and slightly different taper putting loads on the follower.

Upcoming Events

ONRI Rally at the Capitol
Salem, OR
Tillamook County Gun Show
Tillamook, OR
gun show
Colville, WA
Port Angeles Gun & Knife Show
Port Angeles, WA

Latest Resource Reviews

New Classified Ads

Back Top