7.92 chamber depth

[ActionYobbo]

What did people use for magazines to feed the 8mm ammo.....those who got your sets??

-TomH

whats wrong with the 7.92 bren gun magazines.

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[TactAdv]

whats wrong with the 7.92 bren gun magazines.

Nothing, if your receiver will accept them!! ;-)

As I, and now others, have noted, the original .303 receivers are just shy at the back wall of the magazine well to allow the standard vz.26/30, FAO, or Inglis mags to drop all the way down and latch.

I think some people are missing the fact that my statement was in relation to only all-original guns like my Daimler Mk II, i.e., un-cut and welded back. My receiver is exactly as it came off the line when it was made. I suspect that those individuals who can get the vz26/30-FAO-Inglis mags to fit are using a receiver that has been cut and put back together.......such a process might allow the needed slack to be introduced. It really is a VERY small amount that the back wall needs to be relieved...and this "slack" could easily be introduced in putting one back together.

A factory original .303 receiver is marginally shorter than a factory 8mm Inglis receiver. Since the Canadians chose to merely copy the existing and proven CZ vz.26/30 mag it is almost certain they too discovered and adapted this necessary change to the mag well dimensions.

Also as I said, my concern is mostly to do with finding a suitable magazine to use that will fit the more modern 8mm dimensions. All these mags were originally designed around specifications for 7.92x57JS ammo that was markedly shorter in cartridge OAL.

So there are in actuality TWO fit issues- One, does the selected magazine fit into your receiver, and SECONDLY, does the selected magazine accommodate and properly feed the variety of 8mm ammo you intended on using.

In my factory original guns' case, 8mm mags do NOT just drop in and latch (as expected), and the CZ vz26/30 mags I have tried do not accommodate the Romanian 8mm ammo I was hoping to use.

I have not yet tried loading the Romanian ammo into ZB-39 mags I have- I would be pleasantly surprised to discover that it would work as the ZB-39 mags fit perfectly into my receiver and are in fact, what I use to feed .308/7.62mm NATO ammo.

-TomH

[Joe H]

I think some people are missing the fact that my statement was in relation to only all-original guns like my Daimler Mk II, i.e., un-cut and welded back. My receiver is exactly as it came off the line when it was made. I suspect that those individuals who can get the vz26/30-FAO-Inglis mags to fit are using a receiver that has been cut and put back together.......such a process might allow the needed slack to be introduced. It really is a VERY small amount that the back wall needs to be relieved...and this "slack" could easily be introduced in putting one back together.

So there are in actuality TWO fit issues- One, does the selected magazine fit into your receiver, and SECONDLY, does the selected magazine accommodate and properly feed the variety of 8mm ammo you intended on using.

In my factory original guns' case, 8mm mags do NOT just drop in and latch (as expected), and the CZ vz26/30 mags I have tried do not accommodate the Romanian 8mm ammo I was hoping to use.

Tom,

Give it a try but I think I tried 8mm mauser in the ZB39 mag and the mag was too small. The 8mm is between 4.5 & 6mm longer than the 8x56r.

I'm using the zb30 mags in a semi weld up. I had to grind material from the lower rear of the mag well for it to fit. It was not an insignificant amount with an air pencil grinder. After the grinding it still accepted .303 & zb39 mags. IMO if a std .303 Bren weld up accepted the ZB-30 without the mag well mod then you would be very susceptible to loose fits with both ZB39 & .303 mags. and maybe problems with headspace.

For using the Zb39 mag for 7.62x51 I found that I had to remove the box guide under the follower and grind off about .032" from the horns of the mag follower or the last round would jam or not feed. Once you get your 8mm zb30 mag to fit it will also feed 7.62x51.



Joe