Exactly that, though your best option is ducking around a corner of a building as well as having some distance.
Probably not initially, but I’ll add interactions with pits at some point so you can duck down in one and reliably avoid the blast (heck yea trench warfare vs zombies!).
Same with sandbags (the half wall/barricade) I presume right? Just thought of this but if you can duck into a pit to avoid shrapnel, what about gunfire?
First the ranged weapon rebalance, now the explosives rebalance Cataclysm: DDA is making a lot of strides! I like how there’s more viable playstyles besides bionic-melee god. With the Expanded Archery Mod and the rebalance archers are far more viable and hopefully being a psycho anarchist is next!
You want the really economical option? Just wait till night and set a small building near the horde on fire. You can either get the rush going using an air horn from hiding in the building, or just move down the street a ways and wait for it to start collapsing.
The noise of a burning/collapsing building is sufficient to draw in all Z’s from a several block radius, and they have absolutely no survival instincts regarding fire, so the vast majority of them will shuffle right into the inferno and be neatly incinerated.