Firearm having a dual cam, cock on close bolt action

1. A bolt action firearm, comprising:

a trigger assembly;

a barrel operatively coupled with said trigger assembly, said barrel including a cartridge chamber, said cartridge chamber being configured to accept one of a .17 caliber cartridge, a .17 WSM cartridge, and a .17 HMR cartridge; and

a bolt assembly operatively coupled to said trigger assembly and said barrel, said assembly including:

a main body defining central bore along a central axis and having a neck portion with a pair of elongate slots that pass through said neck portion, said elongate slots being diametrically opposed to each other;

a cam cylinder mounted to an external surface of said neck portion, said cam cylinder having diametrically opposed spiral-shaped slots, said spiral shaped slots being in mirrored symmetry about said central axis;

a spring retainer slidably engaged within said central bore at said neck portion, said spring retainer including a pin that passes laterally therethrough, said cam pin extending through said pair of elongate slots of said neck portion and through said diametrically opposed spiral-shaped slots of said cam cylinder; and

a main spring disposed distal to and in contact with said spring retainer,

wherein rotation of said bolt assembly from an open position to a closed position causes said cam cylinder to exert a force on said cam pin in a distal direction, which causes said cam pin and said spring retainer to move in said distal direction to apply a compressive force on said main spring.