WCH,
Yes the Zombies are just V-Max with green tips.
The Nosler BT in 40-50gr are a little tougher bullet than the V-Max IME. I like them better on Coyotes than the V-Max, and have had good luck with them on the dogs.
If saving pelts, the 40gr BT will usually stay inside one from a 223 Rem., so only an entrance hole. The 50gr BT may pass thru or not, depending on distance/impact velocity, shot placement and which cartridge you are using them in.
The V-Max are more explosive on smaller varmints, so prefer them on ground squirrels/gophers, praire dogs, etc.
Can't speak to the Blitzkings in any great quantity, but what I've used seemed more explosive similar to the V-Max.
Good Luck,
-Ted
