Great pellets with long distance accuracy.
H&N is the finest brand of airgun pellets and accuracy is unmatchable. The power delivery at target is good, so is the consistency from 20 to 80 odd metres. Suits all good air rifles, right from Marauder & Airforce Condor to Evanix, Dominator and the latest FX Impacts.
Zo air slugs are just OK though, with above average performance. They are pretty expensive at almost 6 per 177 slug. You should rather go for IHP slugs in 177, far better accuracy and are pretty economical.