Hi
I've been comparing some different brands of pellet as follows:
Crosman Destroyer
Crosman Premier Domed
Bisley Pest Control
H&N Field target Trophy
Prometheus
Big Boy Senior
I've had greatest accuracy with the Bisleys (8.9) grain and the H&N (8.6 grain.) Next come the Crosman PDs (10.5grain) and Destroyers (7.4grain) , all accurate enough to take hunting. The Destroyers and Bisleys are hollow point types and flatten out nicely on impact. The Big Boy Senior (15.8 grain) were wildly inaccurate, not just firing low as you'd expect, due to their weight and the soft lead that they appear to be made of.
The Prometheus pellets were also very inaccurate, which came as a surprise, because they look well made and built for accuracy and high penetration. I gave up after 10 rounds and went back to the H&ns, but couldn't get the rifle to fire on target, it was hitting way right and after a good 5 group, I had to adjust the scope to get it back on the bull. Have read on other forums, since, that you can damage your barrel with them. So THEY won't be used again.
Is it possible that the Prometheus pellets acted as a bore cleaner, due to their plastic skirt? and that I'll have to re-lead the bore? It's the only explanation that I can dream up!
Has anyone else got any theories?
To sum up, I'll stick mainly to the Bisleys and H&Ns as they seem to suit the rifle better than the heavier pellets.
Cheers!