A lot of people say armor punishes Reaper too much, but let me show you why Armor doesn’t do much to stop him.
Reaper shoots 20 pellets at 7 damage each for a total of 140 damage for a body shot. A headshot turns this into 280.
Now the way armor works is if you do less than 10 damage that attack will have its damage nerfed by 50% if you do more than 10 damage then the attack will be reduced by a flat 5 less damage.
Reaper does 7 damage per pellet, so that is reduced to 3.5 per pellet by armor. This means a body shot to armor will do 70 hp.
HOWEVER
Headshots against armor work differently…
A headshot makes each pellet do 14 damage which is more than 10 damage which means instead of getting his pellet damage halvedhe has it reduced by 5 damage points. This means that instead of doing 3.5 damage per pellet a headshot has him do 9 damage per pellet for a total of 180 damage against armor
To recap:
-Regular body shot: 140
-Regular headshot : 280
-Armor bodyshot: 70
-Armor headshot: 180
This is highly important because Reinhardt, Orisa, D.Va all have 200 armor which means all it takes is one headshot and a melee to get rid off all their armor. Winston is worse off because he has only 100 armor which means that the first shot will do 220 damage (12 pellets needed to get rid of armor).
So yes, Reaper does indeed counter tanks since armor doesn’t do much.
(Pro-tip jump up to Roadhog, Orisa and Reinhardt to get their head to be a much larger target)