I don't know about that, but what would the one above it do ? I don't know why you'd not want bullet holes, but you can disable them in the game console.
SniperWolf wrote:I have some targets that disappear when shot but you can see the the bullet marks after it disappears. I don't want to see the marks.
@SniperWolf: it would disable the bullet holes on that surface altogether. Why don't you move the target to an alternate location where it can't be seen instead of hiding it?