Portuguese 7.5 Ammo & Loose Projectiles


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azthistletoe
November 10, 2003, 06:24 PM
I've got two rifles that fire 7.5 French. One is an MAS 36/51, the other is a MAS 49. My gun shop carried (until I bought it all) new production Portuguese 7.5. This stuff shoots fine in my bolt 36/51, but each cartridge gets a little bit bloated near the rim after I shoot it. When I bought my '49, I cleaned it up well and took out the firing pin. I then cycled a few rounds through it manually to make sure it functioned properly. Everything went well. However, when I was putting my ammo back two rounds lost their projectiles - they just fell out. Further, my '49 only cycles the first five or so rounds when I use this stuff.

So, do you think the ammo is the cause of my rifle not cycling properly? Anyone had similair problems?

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nemesis
November 10, 2003, 10:36 PM
My first response to bulging cases is to suspect the headspacing in your bolt rifle. I can't see why bullets would be pulled unless the OAL is too long for your 49/56's chamber and they are jamming in the lands and being pulled from the cases when you eject the round. I would definitely check the headspace in both rifles and the OAL of the ammo before I shot any more. On second thought, I'm not sure that I would shoot any more of that ammo anyhow.

Just my opinion.

Crownvicman
November 11, 2003, 02:12 PM
This same thing has happened to me with portuguese 7.5 swiss ammo in my k-31. It think it may be poor quality control on the ammo.

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