How heavier depth charges widen the submarine kill zone

What difference would 1,000-pound depth charges make in anti-submarine warfare?

They would widen the probable-kill area and make German submarines more likely to be destroyed even when the attack was not perfectly centered.

The geometry of an anti-submarine attack explains the value of a heavier depth charge. Escorts rarely know a submerged target's position with perfect precision, so the effective radius of the weapon matters greatly. A heavier charge creates a wider area in which pressure damage can disable or destroy a U-boat. The tactics may remain broadly similar, but each pattern becomes more likely to turn a near miss into a kill.