Cheers Daryl,
I get the bit about using my surroundings to my advantage, gate posts etc. I actually thought about fabricating some sort of lightweight telescopic rest on a pole sort of idea to help me but I reckon that's overkill. I'll just need to get some more practice in on acquiring the target and getting the shot off quickly and confidently. Your right about the HW77, its a fab gun, it just oozes quality so I'm definitely going to stick with it and make it work for me.
Happy shooting Fella.