No, if you included the 357 MAX ( not Mag) then you would have something more to contemplate. But ballisticslly, the 30-30 has the lead in most every area over the 357Mag, even at longer barrel sizes. Plus, you need to consider other options available to the 30-30 if you don reload, like the availability of Hornady Leverevolution offerings.
357MAX can shoot 357Max, 357Mag and 38special. Legal to hunt mid-size game in states that allow straight-walled cases unlike the 30-30.
With 44mag, also a straight walled cartridge, you can also shoot 44special, if you can find it, otherwise reload. Also, can hunt mid-size game in states where straight-walled is the only option.
you may also want to consider 350-legend as well, if you want something in an AR platform. That is getting a lot of traction these days.
i like the 30-30. If you reload, you can use pointed projectiles and up the distance and performance of the 30-30. Plus there is the Hornady Leverevolution projectiles That Easily stretches it’s legs. Make sure you only use in a bolt or a single shot rifle For safety reasons If reloading with pointed projectiles (with exception of Hornady Leverevolution) ). if lever action, then make it always the first round in the chamber and NEVER a following round From cylinder, unless you have a magazine fed (not cylinder fed) lever action (think Savage Model 99 in 30-30).
it would help what the use of the caliber would be. If Home SD in a Carbine, Given the bullet types available today, I would lean 357 for the reasons stated above. If a designated deer rifle, the 30-30 is just fine And has possibly taken more deer than any other caliber available today. If I were in grizzly country and wanted both a side-arm and carbine in same caliber, it would be the 44mag.