I'm looking for opinions from people with experience with these two rounds. Trying to decide on a 44 mag lever or 3030 as my primary brush rifle, shot will be anywhere from 30 yards to no further than 100 yards. All advice is greatly appreciated. Once again 100 yards will be the absolute farthest shot
Actually, I've never caught onto the allure of chambering a rifle for a handgun cartridge, so I have a .30/30 lever gun because those long cartridges won't fit into the cylinder of a reasonably sized 6 shooter. Then again my shooting has never been restricted to "within 100 yards". Had it been, my point of view might have favored a .44 magnum or even a .44-40, but more likely I'd have chosen a .444 Marlin or a .45/70, an option which I did enjoy for a time. But when I swapped that .45-70 for a .30/06, it (the .30/06) proved much more suitable for my purposes, and remains my favorite today.
Perhaps an examination of my own experience might be of some benefit. Although you haven't indicated what part of the country you hang out in, its my opinion that big game hunting conditions which limit shots to within 100 yards are relatively rare. Throughout my formative years, I spent much time in the Precambrian shield country of south eastern Manitoba, where one might expect the ranges to be short and the shooting quick. Sometimes they were, and sometimes it was, but more often than not game was spotted at a distance: across a large patch of muskeg, a burn, perhaps on a distant rock outcrop, or along a lake shore, a power line, or a railway right of way, and there was often sufficient time to get into a solid supported shooting position where such a shot could be reasonably made. It didn't take me long to realize that while I needed a rifle that was suitable for quick use in the thick stuff, that rifle also needed to be chambered for a hard hitting, flat shooting cartridge that would allow me to reach out to a quarter mile or so. Like many, I started with a .303, mine a Churchill Arms #4, but despite the 5 groove barrel, and a better than average stock, the moderate range accuracy of that rifle, despite my best efforts, was discouraging, being more appropriate for a 12 ga slug gun. After a bit of experimenting with various smaller bores, the .45/70 and a couple of magnums, a Remington 700 ADL in .30/06, topped with a Weaver K-4 in Redfield mounts, and usually loaded with 165 gr Hornady's over a slightly compressed load of H-4831, became my ideal, although the fixed magazine was clearly inferior to a hinged floorplate, but then as now, I didn't care much for the appearance of the BDL. Had I been a few years older, a M-70 Winchester would have been the obvious choice, but in those post '64 years, in my small world, nothing good was ever said about post 64 M-70s, so by default I became a Remington enthusiast, until that is, I discovered Brno some years later.
Due to the longer ranges which can be encountered and exploited throughout much of the country, and despite a couple of tricks which can make the .30/30 a 300 yard capable rifle, I'd be inclined to urge you to consider a CZ full stock carbine in 6.5X55, .308, or .30/06 particularly if he chooses to live in a one gun household, although you haven't actually said that was the case. Besides, off season is when we do most of our shooting, if you're a rifle crank, and comparatively little shooting is done during the actual hunting season if you're a dedicated hunter. Now your kick when hunting might be to stalk up close, that's how I like to hunt too, but still hunting and stalking for a close shot in no way limits the usefulness of a flat shooting rifle, particularly if your first shot is poorly placed and you need a quick followup on an animal that is rapidly putting distance between you. But regardless of the ranges you actually shoot game at, from my perspective anyway, target shooting at moderate ranges is both more challenging and more rewarding than restricting yourself to short range shooting only, although the importance of short range practice cannot be ignored.