Hello Mulby,
Thanks for the reply.
Last week when I was shooting in England (pest control in rural Somerset) crows were the prime targets. (I used a Weihrauch 97K .177 mostly.) It's quite a large bird and if a 24 can put it down at short range, I consider it quite good.
Mulby, the best energy you got with JSB Exacts. Strange. My 24 .22 shoots harder with lighter pellets.
H&N baracuda 21.1gr: 3.95 fpe
RWS Superdome AND Superpoint 14.5gr: 6.26 fpe
Gamo match 13.7gr: 6.84 fpe
Hobbies 11.9gr: 7.22 fpe
Could it be that tighter fitting pellets build up more pressure and shoot faster ? (you use 5.51 instead of 5.50)
I get this impression as in all my .177 guns H&N FTT 8.64 gr 4.52mm actually shoots as fast or faster than RWS R10 4.50mm
I also wonder if tighter fitting pellets reduce spring life...
CU
BTW: my 24 must be my most "played with" gun. On the cuteness scale it really shines. Mine is a gallery version (new) which has fixed sights and no safety.
I really really like the fixed sights as they shoot to point of aim with most pellets and I never have to sight them in

Joris