If they say 500 to 1000rds....
with thunderbolts, this means 1000 min.
The last box I got, was the worst 22lr Iv ever seen.
10/22, clean hits to rim and no fire... 2 or 3 or MORE in every 10rd mag.
reloaded a mag of rejects, and zero fired. I dumped them in a bucket.
It was the 1st time for the GF and her new 10/22, and the look on her face...
A guy we didnt know was shooting next to us, and handed her a box of minimags... Saved the day!
Iv always used CCI and the reason.... Iv never had a fail with CCI
Actually I did....45acp Blazer, when they 1st came out.(1st time I ever seen or heard of them)...no extractor grove. Not sure how I didnt notice that!
It fired fine though....but ended the 1911 for the day. Once I got it apart, I quickly found the reason.
My point is Iv fired thousands and thousands of CCI products over 40 or 45 years and they always go bang.
I wont even buy 22lr without it being CCI anymore.
and FYI The CCI "quiets" shoot wonderful, but wont run the 10/22 (subsonics)