So there are Air Arms Pellet shooters out there Eggie
I do find them much better quality and consistency wise between batches. Although the consensus tends to be JSB Exact 4.52's and i've had some demon JSB's lately, just not these ones.
Interesting for other 55yd indoor range shooters noticing the difference between the batches of pellets, and washing/lubing, which i think says something about the manufacturing quality and die usage. I think your right though Dyno Dave find a good batch and buy the lot!