Slug XF bullets. From inspection to shooting.
The 2.2 didn't work out so well, but I highly recommend the 2.33. They fly quite well, even at inappropriate speeds. The results, even if they aren't top-notch, won't disappoint.
Manufacturer's VK group https://vk.com/slug36
Video from the production https://vk.com/video-209401105_456239044
After receiving the bullets, it's best to weigh them. Just in case :)