Welp, I got an idea and did some looking. These rifles are a little unusual but still deserve to be immortalized in a great hunting game.
First, a bolt action Model 600. It's a short barreled rifle, light in weight, and chambered for a hefty cartridge. .350 Remington was at one point too much recoil for most shooters and as a result it faded into the history books. Still, it's a powerful hunting cartridge with less recoil than the modern medium bore cartridges. The vent rib is just an oddity of the design.
Second, a lever action that made use of modern cartridges, at a time when people only wanted traditional rifles. It could be chambered in any number of cartridges because it uses a box magazine, so its really a blank slate for the devs. Personally would like it in .243 or .270, just to have a new (old/odd) choice in those calibers. The Model 99 was known for good accuracy and reliable function.
Third on the list, an oddball that became famous, or infamous depending on your outlook. The Model 8 rifle was a semi-automatic rifle introduced to the hunting market not long before the great depression. It could use several calibers, included the reliable .30 WCF (.30-30) and a cartridge that has a cult following in the NE US, the .35 Remington is known as a rock solid performer on white tailed deer and black bear in the Big Woods. A heavily modified Model 8 was used the ambush on Bonnie and Clyde.
Fourth and last here, a pump action rifle. It came in two models either the Lightning Carbine or the Lightning Rifle, it was originally offered by Colt in several calibers, including .45 Colt and .44-40, these days you can get a replica in .44 magnum too. It used a tubular magazine and held 10 rounds or so depending on the caliber. It offered a good option for hunting in thick cover for deer or smaller game.
Tbh? I have no idea if anyone cares about these guns, but it's late, I'm tired, and this rabbit hole was deeper than I thought.