This page lists the various Sharpshooter Talents available to the Sharpshooter advanced class:

NamePrerequisiteDescription
Death ShotSharpshooter 8thBy spending 2 stamina the Sharpshooter may perform a Sniper Shot as a 5 AP action. You may make this attack even if the target isn’t flat-footed or flanked. Make a single attack against the target, on a successful attack make a Resilience(End) save attack. A successful save attack deals damage as normal for the sniper shot. A failed save attack deals half damage. A success by two degrees instantly slays the target. The Sharpshooter may choose to make the attack nonlethal instead immediately deal an amount of nonlethal damage equal to the creature’s maximum hit points.
Elemental Arrow NovaEmpowered Arrow, Sharpshooter talentWhenever wielding a weapon under the effects of Empowered Arrow the Sharpshooter may choose to make a single attack as a 3 AP action. If the attack hits, the elemental damage from his Empowered Arrow ability is applied to all creatures within 5 feet + 5 feet per 2 Sharpshooter levels of the creature he confirmed the critical on; making a Physical(Agi) save attack against all creatures in the area. A failed save attack deals half damage. Upon using this ability the effects of the Elemental Arrow immediately ends.
Elemental Shot (Ki)Empowered Arrow Ranger TalentThe Sharpshooter may choose a single elemental damage type upon gaining this talent (Fire, Void, Cold, etc..), and may choose this elemental damage as a damage type his empowered arrow may deal and their damage from empowered arrow improves by 2d4.
Elemental Shot, Greater (Ki)Elemental Shot Sharpshooter TalentWhen using the Empowered Arrow ability the Sharpshooter may choose to convert all physical damage dealt by his weapon to the same damage type of his Empowered Shot.

The ranger may spend 1 stamina and increase the AP cost by 1 when using the Elemental Arrow Nova slayer talent to allow all his damage to apply all of his weapon’s damage to the area of the Elemental Shot not just the bonus damage from Empowered Arrow.
Greater AimSharpshooter 6thThe Sharpshooter may target a number of creatures up to his Focus modifier with his aim ability as part of a single use of aim each turn and his Aim ability now lasts until the end of his next turn.
Improved Animal CompanionSharpshooter 2ndYou gain additional SPB for the purposes of determining the progression of your animal companion equal half your sharpshooter levels plus an additonal 1 at 5th and 10th level.
Long AimSharpshooter 2ndYou may increase the AP cost of the Aim ability by 1 to improve the range increment of your Bow or Trigger keyword weapon by 10 feet.
ManyshotSplit Shot Ranger Talent, Sharpshooter 10thWhen using the split shot hunter training ability the Sharpshooter may make another bonus attack at a -4 penalty. In addition the Sharpshooter may now choose to direct these bonus attacks from the Split Shot and this ability at the same creature or different creatures.
Meteoric ArrowsSharpshooter 6thWhen using the Rain of Arrows ability the you may double the ammunition consumption of the ability to improve the damage from 1d6 to 1d10. In addition you, gain an additional +2 bonus to your save attack with Rain of arrows when using this ability.
Twin ThreatSharpshooter 2ndWhen wielding a one-handed thrown or trigger keyword their main and off-hand the Sharpshooter threatens adjacent squares with these weapons. If he already threatened with these ranged weapons he may instead increase the threatened area by 5 feet. In addition the Sharpshooter may choose to spend a reaction after making an attack of opportunity with these weapons to immediately reload them, or draw a new one in the case of thrown weapons.