I have seen a moose dropped cleanly by a friend at over 500 yds with his 25-06 and a 100gr X bullet. My one moose with my 25-06 was using a 117gr regular Hornady interlock. It just wobbled for a few seconds and fell over. The quarter bore is under rated in my opinion. The big limitation with 30-30 is your sight picture. If you plan on a 75-100 yard shot you will rarely get it unless in a treestand or blind. I think the 3030 has enough for 200 yds but can you accurately hit at 100+ yds with open sites. If yes, then a 30 cal is rarely a bad choice.