To all/any of you far more knowledgable about smaller bore Doubles that I---

Which Double caliber is closest to the 30.06 ballistics in range and trajectory with its 180 gr load?

How about a 7mm Mauser round with lighter than 170 gr loads?

How about 6mm calibers?

Thanks for any input, cause ballistics get confusing to me in the in the more commonly available smaller rimmed calibers.