OK, don't laugh, but I was given half a tin of .22 Spitfires, so I decided to try them in the 19GR as I was running low on ammo in that calibre. While they are far from a premium brand, they were a lot better than expected, with no obviously deformed pellets or swarf in the tin - and the 19GR really likes them, (more so than some of the expensive brands that I've tried). Might actually buy a couple of tins, as they're available locally for less than a fiver. More than good enough for plinking....