Over the years, I have shot various broadhead targets made of various materials. The target design and material I found to be the best and very durable is the one that Bob Gresko has described.

I don' t know if you can still find the older hemp-type material of Celotex, but you can now use the " fiberboard" insulation that is used on roofs. Just make sure you get the " non-asphalt" type. The non-asphalt should not have an asphalt covered side or asphalt particles in the composition.

It is not fun trying to remove a broadhead that is buried in the target if the target material envelops and traps the head. In addition, if you pull any head (bh or fp) off and it is left in the target, the chance of hitting the head is high.

With the design as Bob described, 1) you have some control over penetration depth by tightening or loosening the clamps, 2) you can easily loosen the clamps, fan the target sections and remove a lost head, and 3) most often you only have to replace just several center sections to rejuvenate the target

Keep the material protected from rain saturation.