Jaysouth asks the key question. Just because it looks bad doesn't mean it won't shoot.
If it doesn't shoot, another option is 35-30/30, which is just the 30-30 necked up to 35 cal. Jesse Occumpagh, JES Rebore (35caliber.com) will rechamber and and bore it out to .358" You basically get 200 grs at 170 grs velocities.
Worth consideration.