Why not?
As for the weight it would really depend on the type of hunt...Not my first choice if extended hiking were involved, but that's me.
As for the brake; The noise is only an issue for those beside the gun, not so much behind it so let your hunting party know that you have a brake and just say "ears" before touching one off, if they choose to not plug their ears its not your issue, or take it off...
If it was stainless it would be more up my alley, I imagine pushing bush it would collect lots of vegetation, again depending on the type of hunt it might not be an issue.
One thing I would not want is exposed target turrets on the scope, way too easy to knock out of whack and not notice until its too late...
So I would pull the brake, oil it down, pull the branches and leaves out of it when needed and top it off with a decent hunting scope then have at it.