A collector has one of these beautiful rifles, absolutely unused (apart from proofing, of course) and has indicated that he might part with it - probably for a sum that will make me cry! He has offered to let me try it out at a range that is accessible for both of us.
Before getting all excited, I would like to hear from anyone who has actually used one of these as a competition rifle. What is the ultimate accuracy I could expect at 100 or 300 yards?