Would a railgun Sniper rifle need a muzzle brake?

Let say its the future and you just happen to have a few room temperature superconductors lying around and you make it into a sniper rifle. Kinda like this one but with maybe a larger calibre(7.62/.338. I’m thinking it would as most railguns have massive recoil. But dont muzzle brakes need gas expanding behind the bullet to work? +5 to the first straight answer. I need this to settle a bet.