I have used geco 105 grain .243 on fallow and roe and they worked on roe a treat. Just got my. 308 and had a fallow buck with it last week. It ran about 10 yards and dropped. (Geco 150 grain t mantel) The bullet went through a rib through the top of the heart and into the far shoulder. No exit wound.
Is it usual to not get an exit wound with these bullets. Found two small pieces of lead in top off heart. Will see what is in the shoulder when i joint it up at the weekend