I know this thread is dead...
But if you want a HS montage with the most powerful snipe, then use any but the FRF2. All snipers are guarentee'd a 100% killshot, no matter where you hit, except Shoulder (59 damage), Arms (50), Hands (41), Legs (50), and foot (41). I know that's nearly the entire body but torso and head, but that's what all snipers do in damage wise. No sniper is more powerful than another, it's just accuracy.
AWP is accurate first scope, fucking dismal second scope.
PSG-1 is commonly used where it's as accurate as the user (So you get used to it really...)
FRF2 is so fucking accurate, but it's the lowest in damage... It fucking owns when doing long range shots, but if the user doesn't have armour, you'll still do damage to them if they did have it, so it's useless extremely long distance.
Dragunov is practically a tanked PSG-1 with 10 bullets, but you're twice as slow.
I've tried the Tango-51, but to be honest... It feels like a tanked FRF2 to me, but it still could be good.
SAS-10 is fucking shit... It's like... 98 damage for a HS... WHAT THE FUCK MAN...
Other than that, everything has it's ups and downs. If you do a montage with FRF2, they'll know you're a good sniper xD