diff --git a/game.go b/game.go
index 2b2bf83..7d2525e 100644
--- a/game.go
+++ b/game.go
@@ -193,7 +193,14 @@ func (g *game) nudgeProjectiles() (rprojectiles []Projectile) {
 			}
 		}
 
-		if v.Distance(p.Position, p.MoveTo) < 5 || hit_player {
+		// Are we going to intersect the destination zone in this tick?
+		r_dest := v.Rect2d{
+			A: v.Point2d{X: p.MoveTo.X - 3, Y: p.MoveTo.Y - 3},
+			B: v.Point2d{X: p.MoveTo.X + 3, Y: p.MoveTo.Y + 3}}
+
+		travel := newPos.Sub(p.Position)
+		arrived, _, _ := v.RectIntersection(r_dest, p.Position, travel)
+		if arrived || hit_player {
 			delete(g.projectiles, p)
 
 			// Spawn a splosion
@@ -219,10 +226,11 @@ func (g *game) nudgeProjectiles() (rprojectiles []Projectile) {
 					}
 				}
 			}
+		} else {
+			p.Position.X = newPos.X
+			p.Position.Y = newPos.Y
+			rprojectiles = append(rprojectiles, *p)
 		}
-		p.Position.X = newPos.X
-		p.Position.Y = newPos.Y
-		rprojectiles = append(rprojectiles, *p)
 	}
 	return
 }