Harry using Dark Magic

[H.M.S]

No: HPFGUIDX 151478

There are many posts discussing how Harry will kill Voldemort, possibly with
the AK curse.  (In South Africa, the AK 47 is the weapon of choice for
criminals, as well as being a rifle the defence force used - is still
using? - for many years)

Back to topic - I believe we have already seen the fore-runner in GoF.  When
Harry's & Voldemort's wands connected in the graveyard, Harry's wand forced
shadows of  Voldie's previous AK's out of his (Voldie's) wand.  Harry had
done something basic like expelliaramus (sorry - don't have my book with
me), plus of course, his strength of will.  What will happen if they both do
equally powerful spells, plus Harry's determination, love, etc??!
Sharon