CBC brass

[ebb]

Was looking at 308 brass and have probably 200 pieces of CBC. A quick look at the internet tells me it is made in Brazil. Is it any good? Most have been deprimed, are they crimped, and need run through the swaging tool before reloading?

 

[can1010]

the ones i tried in 308 had low case capacity, pressured quickly and never reached velocities of other cases.
one good thing they are tough never loosened a primer pocket even after multiple over pressure loads.

max loads were close to book starting loads.

 

[ebb]

Thanks

 

[tommeboy]

They are a lot thicker than other brands. The pistol stuff I sort out completely. It will swage a lead bullet smaller just seating the bullet.

 

[markm87]

I toss this stuff into the recycle scrap bucket. If I were loading gas gun ball ammo, I'd probably run it though.

 

[FloridaAKM]

I bought a couple buckets of test brass from a major manufacturer of AR rifles here in Florida. In the buckets was about 4,000 empty CBC 5.56 brass & a bunch of 9mm CBC also. The 9mm was fine, but after prepping the 5.56 completely & starting to prime them, the primer pockets were way too shallow & the inserted primers stuck up above the rim of the cartridge about 0.015 to 0.020.

Upon measuring the primer pockets, I found that they were way too short to install primers, so a couple of Surefire primer pocket reamers for small rifle primers were purchased. I spent a week in front of my vertical mill uniforming all that brass to allow it to be primed after making a jig to hold the brass firmly.

Had I known that this CBC brass was so horribly out of spec, I would have never bought it. I didn't find out the problem till after all the sizing, depriming, swaging, trimming & polishing was done or it would have just been trashed.

Hopefully, your CBC .308 brass has no issues like my 5.56 did. All my bulk .308 brass is Lake City & Federal Cartridge which have no problems.

 

[ebb]

This may be a South American thing. Bill my LGS owner gave me 50 rounds of Cavium (Guatemalan) 7.62-51 ammo. It was the hottest 7.62 or 308 win I've ever fired. I have never loaded and 308 win even close to that pressure. I was told that that was the way they wanted ammo for FN/FALs that hey were using back then.

 

[FloridaAKM]

Years ago, a co worker bought a Savage bolt gun in .308 & several cartons of Cavim (Venezuela) ammo. He didn't get thru the first 20 rounds before the bolt locked up due to the high pressures of the ammo. That rifle went right back to the LGS & was traded in for another different rifle in .308. The ammo. I still have for use in my 1919a4.

The entire problem was not the Savage rifle, but the high pressure ammo. I wouldn't run it thru any of my AR-10's or the M1A. A FAL will eat it like candy.

 

[5spd]

Ive used cbc brass in. 233 with zero issues and several thousands of it re loaded for pdogs.
No pocket issues, no chamber issues, no brass ussues.

 

[FloridaAKM]

I got about 4k rounds of empty CBC brass from a Floridian gun builder. Every primer pocket was too short to load a standard primer into it without the primer sticking up above the case rim about 0.005 or so. Had to uniform all 4k on a mill, a device I made to hold the brass & a uniforming bit (actually 2 bits).

After that, primers fit perfectly & went on to load them all.