A casting or bomb sinker has a pear or torpedo-shaped body with a wire loop or swivel protruding from the top. The aerodynamic shape of the casting sinker and versatility of the rounder bomb-style weight make them two great all-round options for a variety of rigs. The shape makes them ideal for casting a good distance but they’re not great at holding a bait in place in any sort of current, unlike the pyramid or Sputnik sinker. Keep this in mind when you're choosing the best sinker for the job. But, this style of sinker is popular for a lot of freshwater fishing and is commonly used when targeting species like carp, catfish, trout and bass, often with a more static bait-based approach when casting distance is the most important factor. The rounder bomb-style of sinker is also useful when bouncing baits down the current; when you need a certain amount of weight to cast and hold the bait down, but you want it to be moving naturally down with the current. The rounded shape doesn’t dig into the bottom like a pyramid sinker might. This is ideal for some salmon and trout fishing techniques – “flossing” for steelhead in the North West, for example. This style of sinker is also called a bank sinker but it’s best to buy the slightly more expensive type with a metal loop or swivel on the top. Lots of retailers sell variety packs of casting sinkers and a small range covering 0.5–2oz / 14–57g will serve any angler well for most of their fishing.