Re: 15 min gong target
Im just curious what caliber you will be shooting at it. I too shoot at old disc blades but just to worn you inside of 700 yards my 7mags shooting 162's and 168's will blow holes through them. My sons 7mm-300wm will still blow through at 900 yards. But if you are shooting lighter bullets at or under 3000fps you should be ok.
Fun shooting, Jason