I want a Lapua myself, but most rifles they are chambered in are very expensive, and the ammo or components are expensive. The Savage rifle (can't remember the model) in .338 Lapua is around $1900, look to spend that or more on an optic optimal for the cartridge, and you've just dumped $4,000 in a rifle that is too heavy to do anything with except sniping.
I would personally drop $1200 on a Huskemaw scope for the 7 Mag, buy a good rangefinder, get in a bit of practice, and nothing within 1200 yards of you will be safe. Just my 2¢…
'Merica: Back to back World War Champs