Thread: The dinner plate challenge

Greetings All,
It has been a lovely day so after lunch I made myself a dinner plate target (felt marker circle on paper 195mm dia) and had one shot at 100 metres. I fired sitting using a pair of sticks and the shot went 65mm high and 35mm right of center. The rifle had been roughly zeroed for this projectile, my practise load, and was shot today with a cold clean barrel. In spite of leaving my glasses in the shed and shooting over the sticks I felt pretty steady so I am asking myself.
Is the rifle shooting high because of the rough zero, the cold clean barrel or is it Grandpamac error? Would it be any different with my hunting loads? How would I go at 200 metres, 300 metres?
Honestly I don't know the answer but intend to find out.
Regards Grandpamac.