CZ 527, 300 Blackout, Anyone here?

[johno]

I know its not small cal but hoping someone on here has one, if so could you do me a favor next time your in your gun store take the magazine along and ask friendly dealer if you could feed some 350 Legend rounds into it

I know the 7.62x39 magazine will take the rounds but the ribs would need work so got to thinking that the 300 blackout would use same bottom metal as the x39

If the magazine accepts the legend round I believe that bottom metal will fit a 223 inlet, you can see where i'm going with this

Johno

[johno]

No one?

Johno

[Johnly]

I have a 350 Legend and CZ mags to check the loading.
I'll try to do this later today.

[Johnly]

OK… Curiosity got the best of me, so I made a trip out to the shop.
The short answer is that the 350 Legend case doesn’t fit in a 223, 204, or 6.5 Grendel CZ527 magazines.

The magazine side blocks are too narrow, but those present in the 6.5 Grendel magazines are almost wide enough to accommodate the 350 Legend case. I could press a case between them, but feeding wasn’t going to occur. That said, I think there is a reasonable chance that a Grendel magazine could be modified to allow feeding of a 350 legend case.

[johno]

Thanks for looking into it for me, the reason why I asked about the 300 blackout magazine as it has no ribs so thought it might be a perfect fit

Johno

[JSH]

Howa Mini will work.