GregD- I shoot a 400 spine Beman Bowhunter shaft fletched with 3-4" right wing parabolic feathers, Gold Tip insert that is 12 grains I believe and a 250 grain VPA 3 blade broadhead. Total arrow weight is right at 530 grains according to my old balance beam scale. Bow was a Black Widow PT that pulls 45# at my 27.5" draw.
The deer I shot this season was quartering away. Arrow entered the ribs on the right side and passed thru liver, lung and top of the heart and exited in front of the left front leg. Arrow stuck in the ground and the deer rand 15 to 20 yards, stood for a few seconds and fell over.