Deflagrate (X) "Unsaved Wounds inflicted by attacks with the Deflagrate (X) Special Rule can cause additional Hits."
At the end of Step 9 of the Shooting Attack process for any Fire Group or Strike Group that includes Weapons with the Deflagrate (X) Special Rule, create a new Fire Group or Strike Group that must then be selected in Step 10 and resolved. This new Fire Group or Strike Group includes a number of Hits equal to the number of Unsaved Wounds caused by the Fire Group or Strike Group that triggered its creation. These Hits all have a Strength equal to the value of X attached to the variant of Deflagrate (X) Special Rule possessed by Weapons in the preceding Fire Group or Strike Group, an AP of '-', a Damage of 1 and no Special Rules.