RE: Tooth Wear vs. Cementum Annuli
There are indices out there that, when done correctly, can estimate ages almost as reliably as CE. They usually are a composite of body measurements including tooth wear, body weight and some others. CE is still considered the standard in the scientific field in terms of accuracy. Searching for aging techniques in the Journal of Wildlife Management may yield you more information on the indices of which I speak. I'll take a quick look this week and see if I can point you to some references.
Never trust anyone that wears velcro shoes.
Remington 700p LTR .308, Leupold Mark 4 Tactical PR, DPMS Tactical AR-15 sling, Federal Gold Medal Match 168 gr., Federal High Energy 180 gr.