I am familiar with RWS Superdomes in 22 and use them in my HW99s.

Never tried the Superfields. I notice they come in two head sizes (5.51 and 5.52) and are about a grain heavier than Superdome. Price is about the same.

Does anybody with a Weihrauch springer prefer the Fields over the Domes?

I get good results with Domes, but there are too many which are a loose fit in the barrel. I was thinking of trying the Fields with the bigger skirt size.

NB. I am asking about the 22 calibre pellets, not the 177.