Put a few shots over the chrono today and surprisingly the power is unchanged at an average of 8.7ftlbs

The fps variation is about the same as well, but it’s definitely lost the twang and there is also less recoil, so all is good

I’m currently putting JSB Exact pellets through it as apart from a few old Bisley Magnums, these are the only 0.22 pellets I have. The thing I’ve noticed is the heads on the JSB‘s are a bit tight to get into the breach. They’re 5.52’s and I’m wondering if 5.51’s or 5.50’s would be better, as one of the JSBs I put over the chrono went into the breach much easier and that one pellet gave 9.3ftlbs compared to most of the others which gave 8.5-8.8.

I know it’s not about power but accuracy and they are quite good but I’m concerned that if the heads get marked when they go into the breach, it might affect accuracy.

Any thoughts appreciated.

Norm