Glad it helped you. Always worth searching the net - there's so much out there.
There's a helpful article here: https://www.airgunmagazine.co.uk/features/top-tips-elevated-and-downhill-shooting/
Hello G sellars! thank you very much for the article! I think theres a lot in what is said about the difficulties of holding the rifle etc.Obviously when off horizontal aim low-but how low?i will do some more experiments! Thanks again ! R obert Payne