Universal firearm marksmanship system

1. A universal marksmanship training system for a live fire firearm having sights, the training system comprising:

a display device comprising a graphic display mounted to a rearward side of the sights of the firearm;

the display device having a camera aligned with the sights of the firearm;

the camera capturing a visual target image of the sight picture viewed through the sights;

a display app configured to display a virtual sight target on the graphic display in combination with the visual target image;

a chamber insert configured to be positioned with the chamber of a firearm to be zeroed;

wherein the chamber insert interacts with the display app to determine alignment of a bore of the firearm to a bore alignment point on the graphic display;

wherein the sight target is visually perceived by a marksman, and is vertically offset from the bore alignment point by a vertical offset distance; and

wherein the display app calculates the vertical offset distance of the sight target relative to the bore alignment point given a set of condition variables.

2. The training system as recited in claim 1 wherein the condition variables are selected from the list consisting of:

elevation of a live-fire target relative to the firearm;

weather conditions expected at the live-fire target;

ballistic characteristics of the firearm;

ballistics characteristics of a cartridge to be fired;

distance to the live-fire target; and

marksman firing offset.

3. The training system as recited in claim 1 further comprising sights selected from the list consisting of open sights, iron sights, closed sights, an optical sight, scope, laser sight, and a red dot sight.

4. The training system as recited in claim 1 wherein the chamber insert comprises a laser device.

5. The training system as recited in claim 4 further comprising a magazine having a power supply electrically coupled to the chamber insert.

6. The training system as recited in claim 1 wherein the offset distance is substantially equal to the vertical offset between an alignment point of a sight and the center of the firearm bore vertically below the sight.

7. A universal marksmanship training system for a live fire firearm having sights, the training system comprising:

a display device comprising a graphic display;

the graphic display mounted to a rearward side of the sights of the firearm;

the display device having a camera aligned with the sights of the firearm;

the camera capturing a visual target image of the sight picture viewed through the sights;

a software application configured to display a virtual target on the graphic display;

a sensor which detects the position of the display device relative to a firearm,

wherein the sensor interacts with the software application to determine alignment of a bore of the firearm relative to the graphic display;

wherein the display device displays a sight target on the graphic display;

wherein the sight target is visually perceived by a marksman, and is offset from the bore alignment point by a offset distance; and

wherein the software application calculates the sight target relative to the bore alignment point of the firearm given a set of condition variables.