No, not the core...of course the standard McKenzie 3D deer targets don't have any core, you have to replace the entire midsection. I'd like to replace the midsection of my WT target w/a standard one if it'll fit. The WT is a 3 pc "interlocking" target (not counting the replaceable core) & the pcs really look a lot like the standard medium deer to me, but I don't have the standard one here for absolute comparison. Any one know for sure?