I've always butchered my own deer too. I just hang them by the back legs for about 2 hours since our weather doesn't get that cold. Pull off the skin. Carefully take out the 4 tenderloins. 2 on the back strap and 2 small ones inside the cavity. Someone postd an awesome video clip not too long ago that shows the cuts and how to cut them out. Save those hoofs to make a gun rack.

Tie them back with a string and in 30 days they are stiff as a board to make into a gun rack.
Chuck7