Field target shooters at our club have had problems getting good quality pellets. We have found that there is a big difference between same brand but different batch numbers. attached are pics of testing sesson with daystate 4.51 and jsb 4.52. Test carried out at 50 yards and the coin in the pics is a 5p. It took a long time testing different batches to achieve what we found was the best for our rifles (both steyr lg110) In the daystate pic all groups could be covered by the 5p except three marked x. Jsb groups which were tight are labeled sb. What we also discovered was the slightest variation in grip or position on the bag could affect the group size.