Plastic vs Fibre

hammer shotgun see p20 in this edition) I spent two days on a field where I’ve been shooting doves for the past 20 years at least. During the test I used about 500 cartridges, some on birds. While I was picking up birds around my hide I noticed a few plastic wads lying around, and on closer inspection found hundreds (old and new) in the fairly small area where I normally shoot (I have a favourite spot on the side of the field, which I’ve used for many years). It’s impossible to tell how long the older wads have been