The variety of available bullet weights and styles make the .44 Mag. a versatile cartridge, and a rifle with a relatively fast rifling twist can accurately fire all of them. Read on:
Although frequently used in 1,000-yard engagements, the .308 Winchester is often regarded as a “900-yard cartridge.” It gets this reputation because most bullets fired from .308 Win. rifles fall below the speed of sound slightly before they reach 1,000 yards.
The 6.5x55 mm Swedish is an age-old cartridge, drafted for military duty by Sweden and Norway in 1894. The 6.5 mm Swede has also been rejuvenated in recent years due to interest in a host of popular new 6.5 mm cartridges and the stream of new bullets, initially intended for those cartridges, that make the now-classic Swede an even better target and hunting cartridge.
I must move within social circles with those who are cognizant of effective ballistics, because hunters regularly tell me that their main big-game rifles are chambered in .270 Winchester.