Complex sentence: All these cartridges have certain advantages over the 5.56 × 45mm NATO, but they have their own individual tradeoffs to include lower muzzle velocity, less range, decreased magazine capacity, and different internal parts.
Split into simpler sentences: All these cartridges have certain advantages over the 5.56 × 45mm NATO, but they have their own individual tradeoffs to include lower muzzle velocity and less range. Additionally, when using a round not based on the case of the 5.56 there can be decreased magazine capacity, and different internal parts.