na, that just won't cut it with today's vampires. Today's vampires are not only faster, but harder to kill. that's why you need to make your own bullets set to your favorite revolver caliber. you'll need something that will pierce and engine block @200 yards so I suggest a .44magnum or bigger. Now you need to buy a couple of silver coins blessed by austrian monks that once(not twice) visited the vatican on a full moon. you still with me? ok, now you need to melt the coins down(did I mention the coins had to be pure silver) into a semi wadcutter design and cut a cross onto the top of the bullet(for added effects) load to mediocre pressures.
After you've done all this your free to slay away.(just don't complain if it doesnt work or you cant find any vampires to test your bullets on.)
oh and reading this cost you $4200 which is cheaper than that kit.