Agreed, there is no way a 25.39 pellet in .22 cal is going to have the traditional diablo shape. My guess is the FX orange tin is the rebranded JSB Monster and the FX blue tin is the rebranded JSB Monster RD.
Pic of one of my tins of the FX .22 cal 25.39gr pellets and the pellets that are inside it taken 5 minutes ago. Don't know the deep down, nitty gritty details of everything to do with them, just what I found when i dug the tin out. Mine came from Jeff at Trenier.