I feel really silly asking this question but does anyone else struggle to pinch enough loose skin to do subcutaneous injections? For some reason the skin on my Greyface Dartmoors always seems pretty taught and every year heptavaccing proves to be a real battle. Maybe it's the breed since I don't recall having a problem on a commercial ewe when I went to a sheep handling course.
With the automatic guns do you still need to lift the skin up or is there an adjustment for the needle so it only penetrates just below the skin?