Slane & Rohrsch Revision 2 railgun "Leithawyn's Whisper"

One shot, one multi-kill.

weapon (ranged)


Slane & Rohrsch Revision 2 Railgun (variant railgun)

Price 30,000 gp; Type two-handed ranged; Proficiency exotic (firearms OR heavy weaponry); Dmg (M) 3d10 blu. and p; Dmg (S) N/A; Critical ×4; Range 200 ft.; Capacity 6 (6 rail darts); Usage 1 charge, 1 rail dart; Special slow recharge†, touch, scope††; Weight 12 lbs.

One of the rarer forms of weaponry found among Numerian ruins is the railgun labeled “Slane & Rohrsch Revision 2”. Less fanciful than the graviton railgun that shoots pebble-sized metallic scrap at relativistic speeds, the S&R R2 opts for the lower tech solution of firing a much larger copper-jacketed adamantine dart at mere hypersonic speeds. While this means the user has to carry both propellant (in the form of battery charges) and ammunition similar to a Golarion-native firearm, the darts give the weapon better penetrating power and the resulting weapon is larger but more ergonomic. Shots fired from a S&R R2 railgun bypass an object’s first 20 points of hardness, and can completely penetrate targets without hardness.

When making an attack with a railgun, make a single attack roll and compare that result to the ACs of all creatures in a line extending out to the weapon’s maximum range. This weapon damages all targets with an AC equal to or lower than the attack roll. However, if the attack’s damage fails to penetrate any target’s hardness or damage reduction, this shot is blocked and cannot damage targets that are farther away.

Special: Any creature standing next to a S&R R2 when it fires (defined as the two squares perpendicular to the line of effect) take 1d6 points of fire damage as the barrel’s baffles direct the weapon’s fireball and pressure wave away from the wielder; such creatures may make a DC 15 Reflex save for half damage.

Due to the S&R R2’s ammunition being made primarily of adamantine, its rail darts are always considered masterwork ammunition.

Slow recharge: A slow recharge weapon can only fire once per round and cannot make iterative attacks, but unlike a slow-firing weapon it does not need a full-round action to fire, as the weapon automatically readies itself between shots.
[Note: This means it can be used with gunslinger deeds such as targeting and dead shot, despite it only firing once.]

††Scope: This weapon features an integrated spyglass-sight mounted on it to improve accuracy at longer ranges. Scopes reduce the penalty for ranged attacks by 1 for each range increment, as if the user had the Far Shot feat. If the user already had the Far Shot feat, instead the scope improves the weapon’s range increment by 50%.


Craft DC 30; Cost 15,000 gp
Craft Technological Arms and Armor, military lab
Rail darts: DC 25; Cost 120 gp each / 720 gp for 6 (which weigh 1 lb.)
Gunsmithing OR Craft Technological Arms and Armor


Recovered from a cache of items in the Steam Grotto in the Glenebon Uplands, on the Numerian border.

Slane & Rohrsch Revision 2 railgun "Leithawyn's Whisper"

Kingmaker Daviot