power drop on scorpion se

[mogi]

i have a bsa scorpion se 177 which was last cronoed a couple of months ag at 11.2ish with jsb 8.44 and high 11 with bis mags,after 200 pellets i re chronoed it hoping it hadnt crept up and got 8.5lbft with jsb and under 10 with bis mags....any ideaon the sudden drop in power? was using a combro cb625 mk4 thanks

[secretagentmole]

1) What did you fill the Scorpion up to? They do have a sweet spot round about 200-210bar, not all like having 232 bar forced down the cylinder you know!

2) Batteries ok in the Combro?

3) Right pellet weight in the Combro?

4) Suffering from usual BSA quality, take it back!

[mogi]

the sweet spot on mine is about 215/220 down to 140. i tried at various levels within that. you might have an obvious point with the combro batteries though,ill order some cheers