5.56 in a 6.8 Mag?

[rob3220]

Curious if anyone has put 5.56 in a 6.8 magazine. Do they feed correctly? I haven't pulled rounds out to check myself...was wondering if anyone had experience out on the range.

[Clint]

I wouldn't think it would work with more than a few rounds, but why would you want to try that?

[rob3220]

Yeah, exactly. That's why I haven't it done it myself. :D

[ArtFWTx]

Curious if anyone has put 5.56 in a 6.8 magazine. Do they feed correctly? I haven't pulled rounds out to check myself...was wondering if anyone had experience out on the range.

Looks like someone is looking for an excuse to justify a trip to the range !! :lol: :lol:

[new68owner]

I've been wondering this same question. If they work that would be great to know...and if they don't work, will a simple change of the follower allow them to work...or are there other dimensional differences that would prohibit this?

Excellent question by the OP, thanks!

[ron169]

Why do it? well instead of keeping track of the mags to prevent ^.8's in the wrong mag.... just buy one type of mag and use for either guns!

[rob3220]

Well, since no one had an answer, I went ahead and attempted using a Barrett 30 round 6.8 Mag. Rounds load a little flatter, so you can fit about 34 rounds in the mag, maybe more. I hand cycled a few rounds and pretty much every round gets caught on the feed ramp.
I know no one would really do this, but I was curious since you we all know you can feed about 5 rounds of 6.8 in a regular mag.

Bottom line is obvious: don't mix your mags and ammo!!

[new68owner]

Thanks for the info!

[marinesg1012]

i have a mix of 556 and 6.8 mags in all colors and configurations, I personally spray in orange paint 556 on my 556 mags and 68 on my 6.8 mags in one inch letters... it isn't super tactical I guess but if people come to the range with me they can easily understand the difference and i am not on my belly stalking through the jungles so a ittle orange paint wont give me away.

[FALbert]

This ribs are shallower so the thinner 5.56 are spread out more when feeding. That is asking for trouble.