Complex sentence: In many respects this cartridge parallels the.600 Nitro Express, in that it is essentially a scaled-up version of that cartridge, but is somewhat more powerful, and fires a heavier 1000-grain (64.8 g) bullet.
Split into simpler sentences: In many respects this cartridge parallels the.600 Nitro Express. It is essentially a scaled-up version of that cartridge, but is somewhat more powerful, and fires a heavier 1000-grain (64.8 g) bullet.