These are all cartridges born out of a desire to improve performance of existing rounds (some that don't need it because they're just that good to start with) and succeeded in doing so by either making them hit harder, fly farther, or more accurate.
Generally it's all 3 with these cartridges. (For the Gun Nuts who are annoyed I changed the names a bit, CotW can't use brands and I really want them to consider all these rifles)
.280 Ramshorn, a Falling Block rifle featuring a weight of 3.5 units and a single cartridge. Excelling at long range shooting it's the perfect choice for hunting in mountainous terrain for bighorn sheep and goats of all sorts. (3-8)
.36 Wolfram, a lever action rifle using an advanced case design that allows much higher velocity and terminal performance compared to like size ammo. Using 5 rounds of either Jacketed Hollow Point and polymer tipped rounds this rifle is suitable for everything from roe deer to moose( 3-8)
.416 Express, a bolt action designed to provide an alternative to slow and heavy big bores like the .470 King. Offering 3 rounds of brass solids or soft point ammo with impressive knockdown power it's more suited to hunting the likes of salt water crocodiles and cape buffalo than smaller game. (7-9)