Heat a tablespoon of the oil and brown the game and venison in batches until well browned. Keep on one side.
Heat the rest of the oil and cook the onions for five minutes until starting to soften. Add the garlic, bacon and mushrooms and cook for another 2-3 minutes.
Stir in the flour and cook for two minutes. Season well and stir in the bay leaf, orange zest and juice, redcurrant jelly, stock and wine.
Bring to the boil, add the meat and simmer gently for 40-50 minutes until the meat is tender. Cool.
Heat the oven to 200C/400F/Gas 6.
Put the meat mixture in a pie dish. Roll out the pastry to make a lid and attach to the dish. Decorate with the pastry trimmings and cut a steam hole in the centre. Glaze with beaten egg.
Bake for 20 minutes and then reduce the heat to 180C/350F/Gas 4 for 30 minutes until the pastry is golden and risen and the filling is piping hot.