Complex sentence: All types of shotguns are suitable for clay pigeon shooting, however the ability to fire multiple shots in quick succession is generally considered important, however some skilled shooters will use a single shot firearm in order to add to the challenge.
Split into simpler sentences: All types of shotguns are suitable for clay pigeon shooting, however the ability to fire multiple shots in quick succession is generally considered important. Some skilled shooters will use a single shot firearm in order to add to the challenge.