Ok, so I have five MAG brand 120 round mid-caps like the one in the photo above. I just purchased about 12 000 BBs from airsoftcentral.ca and they jam in my mags.
The diameter is 5.95mm and they just don't feed into my gun. The 5.93mm Bioval BBs I have feed perfectly. Even 5.95mm Matrix BBs feed fine.
What's the deal here?