Barrel Swivels are particularly useful when fish ultra-deepwater with a drop shot rig and the fishing line has the tendency to twist many times when reeling in. This twisting decreases the overall strength of the line and can cause breakage well below its poundage rating. Barrel swivels are also useful when fishing baits like weightless flukes, senkos, and pre-rigged worms. The constant flipping and twirling motion of these baits tend to also cause line twist and cause bad hook sets and unnecessary breakages.

