RockAndSage
WKR
Proof Reseaerch MTR. They have lighter and more traditional hunting-style guns as well, but they're awesome rifles.
Keep in mind though that there's a point of diminishing returns on accuracy and weight, and they start getting way more expensive far out of proportion to how light or how much more accurate you're getting with increased cost. So ask just how light and accurate you genuinely need, or can genuinely benefit from. As of this moment, I personally would be better off with a 1MOA Savage or Ruger American and 5 additional cases of ammo and a precision rifle class, than I'd be in picking up a Proof rifle for the same cost.
Keep in mind though that there's a point of diminishing returns on accuracy and weight, and they start getting way more expensive far out of proportion to how light or how much more accurate you're getting with increased cost. So ask just how light and accurate you genuinely need, or can genuinely benefit from. As of this moment, I personally would be better off with a 1MOA Savage or Ruger American and 5 additional cases of ammo and a precision rifle class, than I'd be in picking up a Proof rifle for the same cost.