I bought this product not thinking of bore size first. :-\ It was so cheap and I was feeling cheap so I bought these and got metallic white shell with watery white fill.
Worst paint balls I've bought since I came back to paint balling. I don't even recall my balls going straight not even once. Was ridiculously inaccurate. Broke so many time. I did't even enjoy playing paintball that day.
I believe the bore size of this paint is much greater than J&J creamic barrel.
Probally worth buying this product if one had large bore barrels.