I wanted to add that I've been shooting H&N pellets exclusively for a couple mo.(not in competition though) and have found that overall the H&N pellets are much more uniform overall especially the skirts. But the lead is quite a bit harder and skirts much thicker than JSB's.
In a 20ftlb rifle the bent skirts do seem to produce fliers, I never thought I would use these in competition? but I'm going to sort out the bent skirts and shoot them next 25m match.
I've had a poor start to the season so It doesn't concern me any! also have ran out of the JSB's that my gun prefers...
Which brings up another note they don't seem to have such a variance from lot to lot like the JSB's do!