This target holder is made out of 1/2" AR500 steel and can take hits up to a .338 magnum. Shaft collar keeps the chain from shifting around on the pipe stand. Target holder Fits: 3/4" Pipe and takes 1/2" bolts Weight Per: 1 lb Never use a handgun closer than 15 yards Never use a magnum rifle closer than 200 yards No Steel Ammo, stay under 2850 fps at target to avoid pitting Mount at a downward angle to increase life span and safety Never shoot at steel without eye protection