I know it's been asked before many times but here goes.

I had a plinking session about two weeks ago on a mild sunny winter afternoon and the grouping
was very good four mags of pellets at 40 mtrs in a very light wind. The grease my guess would
off been quite viscose.

This morning same venue very cold morning I fired around 300 pellets and struggled to give a full
mag grouping !!! this was on the two occasions using JSB 4.53, I even tried a sample tin of express
they gave three pellets in the same hole then the group opened up.

I've started a poll on the grease, who ever votes can they say how good it was before and after please.
I'm toying with the idea of taking mine out again ...