General Way To 'Widen' A Ray Cast?

Hello,

Is there a way to 'widen' a ray cast so its more liable to hit something. The Unity FPS tutorial on the weapons uses ray casting, but the ray cast is too accurate and pinpointed. So is it possible to widen the diameter or something around that area?

Reason I ask is because I have a turret that has a Slurp rotation, so when it tracks the enemy, it rotates with it slightly slower, or 'lagged'. And because it fires ray casts it tends to miss the target if the target turns in a slightly awkward way.

Thanks

Use a capsule cast. :)