Is CBC M80 ball corrosive?

[diderr]

I bought some locally just for misc. plinking. And shot about 15 rounds of it today. I was just wondering if it's corrosive, or dirty in nature? I normally don't clean my gun until accuracy falls, and I just shot a 4" group at 620 yards (not w/ the m80 ball of course); with it having 160 rounds without cleaning.
Thanks.

 

[MAGUA]

http://intl.cbc.br/upload/downloads/3_en.pdf

 

[hounddawg]

Funny you should ask. I was just thinking that same thing a few days back. I searched online and one link led to another and I found this: M80 Ball Ammunition Roundup | Shooting Illustrated

Interesting comparison by someone who seems to know.

That said, as far as corrosive ammo goes... When in doubt, treat as corrosive. I clean my rifle every time I shoot it. I like to be sure that the gas system will cycle. Long ingrained habit.