Multiple nomograph system for solving ranging and ballistic problems in firearms

• US 20060260171A1
• Filed: 12/22/2005
• Published: 11/23/2006
• Est. Priority Date: 05/20/2005
• Status: Active Grant

• Current Assignee: Superior Shooting Systems, Inc.
• Original Assignee: Superior Shooting Systems, Inc.
• Inventors: Tubb, G. David, Cole, Brand D.
• Granted Patent: US 7,325,353 B2
• Time in Patent Office: Days
• US Class Current: 42/122
• CPC Class Codes: F41G 1/38 Telescopic sights specially adapted for smallarms or ordnance telescopic sights in general G02B; Supports or mountings therefor
• CPC Class Codes: G02B 23/145 Zoom viewfinders

Abstract

The multiple nomograph system for solving ranging and ballistic problems in firearms includes a series of graphs or nomographs for the determination of a series of factors affecting the ballistic trajectory of a bullet in flight. The nomographs may be placed upon the reticle of a firearm scope, or provided on media external to the scope, as desired. The scope reticle includes at least one aiming point or aim point field to compensate for elevation and windage, with the vertical axis preferably being offset to compensate for precession at longer ranges. Stadia for determining angular target dimension(s) are included on the reticle, with a nomograph for determining apparent distance from the apparent dimensions being provided either on the reticle or external to the scope. Additional nomographs are provided for the determination and compensation of non-level slopes, non-standard density altitudes, and wind correction, either on the reticle or external thereto.

Claims

1. A multiple nomograph system for solving ranging and ballistic problems in firearms, comprising:

a firearm scope;

a reticle disposed within said firearm scope;

a multiple point elevation and windage aim point field disposed upon said reticle;

horizontal and vertical angular measurement stadia disposed upon said reticle;

a distance v. angular measurement nomograph, corresponding to said horizontal and vertical angular measurement stadia;

a slope and wind correction nomograph; and

at least one density altitude nomograph.

2. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 1, wherein at least one of said distance v. angular measurement nomograph, said slope and wind correction nomograph, and said at least one density altitude nomograph is disposed externally to said firearm scope.

3. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 1, wherein said elevation and windage aim point field is laterally skewed for precession compensation.

4. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 1, wherein said at least one density altitude nomograph comprises a density altitude determination chart and at least one density altitude ballistic correction nomograph.

5. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 1, further including polygonal stadia alignment markings disposed at least upon said horizontal and vertical angular measurement stadia.

6. A multiple nomograph system for solving ranging and ballistic problems in firearms, comprising:

a firearm scope;

a reticle disposed within said firearm scope;

at least one elevation and windage aim point disposed upon said reticle;

horizontal and vertical angular measurement stadia disposed upon said reticle; and

at least a distance v. angular measurement nomograph, corresponding to said horizontal and vertical angular measurement stadia.

7. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 6, wherein said at least one elevation and windage aim point comprises a multiple point elevation and windage aim point field.

8. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 7, wherein said elevation and windage aim point field is laterally skewed for precession compensation.

9. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 6, further including:

at least one slope and wind correction nomograph; and

at least one density altitude ballistic correction nomograph.

10. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 9, wherein at least one of said distance v. angular measurement nomograph, said slope and wind correction nomograph, and said at least one density altitude ballistic correction nomograph is disposed externally to said firearm scope.

11. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 9, further including a density altitude determination chart.

12. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 6, further including polygonal stadia alignment markings disposed at least upon said horizontal and vertical angular measurement stadia.

13. A multiple nomograph system for solving ranging and ballistic problems in firearms, comprising:

a firearm scope;

a reticle disposed within said firearm scope;

at least one elevation and windage aim point disposed upon said reticle;

horizontal and vertical angular measurement stadia disposed upon said reticle;

a density altitude determination chart; and

at least one density altitude ballistic correction nomograph.

14. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 13, wherein said at least one elevation and windage aim point comprises a multiple point elevation and windage aim point field.

15. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 14, wherein said elevation and windage aim point field is laterally skewed for precession compensation.

16. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 13, further including:

a distance v. angular measurement nomograph, corresponding to said horizontal and vertical angular measurement stadia; and

at least one slope and wind correction nomograph.

17. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 16, wherein at least one of said distance v. angular measurement nomograph, said slope and wind correction nomograph, and said at least one density altitude ballistic correction nomograph is disposed externally to said firearm scope.

18. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 13, further including polygonal stadia alignment markings disposed at least upon said horizontal and vertical angular measurement stadia.

19. A multiple nomograph system for solving ranging and ballistic problems in firearms, comprising:

a firearm scope;

a reticle disposed within said firearm scope;

at least one elevation and windage aim point disposed upon said reticle;

horizontal and vertical angular measurement stadia disposed upon said reticle; and

a plurality of polygonal stadia alignment markings evenly disposed upon at least said horizontal and vertical angular measurement stadia.

20. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 19, wherein said at least one elevation and windage aim point comprises a multiple point elevation and windage aim point field.

21. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 20, wherein said elevation and windage aim point field is laterally skewed for precession compensation.

22. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 19, further including:

a distance v. angular measurement nomograph, corresponding to said horizontal and vertical angular measurement stadia;

at least one slope and wind correction nomograph; and

at least one density altitude nomograph.

23. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 22, wherein at least one of said distance v. angular measurement nomograph, said slope and wind correction nomograph, and said at least one density altitude nomograph is disposed externally to said firearm scope.

24. The multiple nomograph system for solving ranging and ballistic problems in firearms according to claim 22, wherein said at least one density altitude nomograph comprises a density altitude determination chart and at least one density altitude ballistic correction nomograph.