Thanks for the advice but nowhere did I mention trying to get centre fire performance from anything. I am new to this and just want to get the bullet to make it 50 metres to the target as a starting point.

If it has to be BP then that's what I will get - after I sort out the paperwork. I was just a bit keen to try the rifle this Sunday and happen to have a lot of 777 from my pistol. Does anyone know a stockist of BP in the Norfolk area? I seem to remember reading on here that it is getting harder to find.