I have never heard of a turkey slam but there is a sheep grand slam. Probably the first and consists of Rockey Mounatin Bighorn, Desert Bighorn, Stone Sheep and a Dall sheep. There is a caribou slam, five different species. There is also the north american super slam. That contains 27 different animals, primarily what Boone and Crockett has in the book. Lets see
4 sheep
5 caribou
3 bear
3 moose
2 blacktails
2 whitetails
2 elk
mule deer
mountain goat
bison
pronghorn
muskox
couger

I believe thats all of them.

Alex