I would be more tempted in .30 to shoot the 307 Win. Brass is available, reloading is the only option you have. 200 fps+ over the 30-30 and 150 fps faster than the AI wildcat. I would be more tempted to just rebarrel to a 7-30 Waters. It is a dandy tube feed lever action chamber. Shoots flatter and has less recoil than the 30-30. That’s my 2 cents.
