Ramming
Section 376 of 608
Crew-on-crew actions at 3", and Tonnage-driven collisions in base contact.
The Rule
Boarding requires both units to have CR, the target's SH to be 0, and the target within 3". Both players roll CR and compare successes; ties go to the defender. If the attacker wins, the defender takes HP damage equal to the difference (some factions may make a Dodge save). If the defender wins, the attacker is repelled.
Explanation
Ramming requires base contact. The ramming unit rolls dice equal to its Tonnage; each 5+ scores a hit. The defender makes a Dodge roll if applicable, and any hits left over are taken by both attacker and defender. These hits ignore Shields. If the target has moved 3" or more, ramming hits are scored on a 4+.
Example
A Tonnage 6 Cruiser rams and rolls six dice, scoring three hits on 5+; both ships take the undodged hits.
Designer Commentary
Ramming hurts the rammer too — it should always feel like a decision made in desperation.