Farmboy,
Them Swarovski Scopes and Zeiss scopes are top class scopes pal and used by the Germans all the time for big game, i.e deer and boar due to their brillian light retaining abilities and crystal clear optics.
They are really expensive too and you wont get much change out of £600 for a bog standard one.
As has already been said you will need to re set the parallex, depending on the objective lens pal, you may find it easy to do yourself.
Si