Do as you please and I read the article. 4 inch barrel length will make a difference.
30-30 have killed lots of deer and plenty o moose short range but here is a little comparison for you.
First one is your 30-30 with a 160ftx at what the article author claimed;
Attachment 35019
Second is my 243 WSSM at velocities I CAN achieve;
Attachment 35021
So looking at those numbers the 243 would be a hell of a lot better choice but I still wouldn't chose it.
Your 30-30 is fine for 50 yards as a go to but these things are big animals so lets keep that in mind!