Been there done that. There was a thread under "general discussion", named something like "your other hobbies". And it was locked soon. Not related to air guns. Other hobbies...
My order of new MK II JSB .177, 10.03gr KO slugs was delivered today, with Huggett Belita mod. Now I have all 3 variants of 10.03gr .177 KO slugs. I guess I have to do comparison (shooting) test.
Yesterday actually. From Krale, new FX Slug (1:16 twist rate) liner in .177, FX bottle valves (one for Vulcan 3 CF bottle, other one for spares) and Caldwell shooting bags.