JSB 4.52 was finally what I ended up with after trying loads, but for bench rest you will have to go to batch testing if your serious as that is where the fine detail in accuracy is.

Every target below is a 5 shot group indoors at 30m with out of the tin pellets, I got tighter ones with weighed and batch selected JSB 4.52s The first 5 rows were my LG110.