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.30-40 Krag: History & Art

The .30-40 Krag, also known as the .30 U.S., .30 Army and .30 Flanged Nitro Express (Purdey) was a rifle cartridge developed in the early 1890s to provide the U.S. armed forces with a smokeless powder cartridge suited for use with modern small-bore repeating rifles to be selected in the 1892 small arm trials. Since the cartridge it was replacing was the…

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.30-40 Krag topic overview

The analysis highlights History and Art as prominent areas in the source structure around .30-40 Krag.

Related topics
22
Source areas
2
Connected nodes
24
Extracted relationships
53
Concept neighborhoods
12
Bridge connections
24

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

History and development · 16 topics
Overview · 6 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Base diameter
.457 in (11.6 mm)
Bullet diameter
.308 in (7.8 mm)
Bullet mass/type
Bullet mass/type Velocity Energy 100 gr (6 g) SP 2,898 ft/s (883 m/s) 1,865 ft⋅lbf (2,529 J) 130 gr (8 g) HP 2,746 ft/s (837 m/s) 2,177 ft⋅lbf (2,952 J) 150 gr (10 g) Nos Part 2…
Case capacity
58.0 gr H2O (3.76 cm3)
Case length
2.314 in (58.8 mm)
Case type
Rimmed, bottleneck

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

History and development

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How .30-40 Krag connects Entity context

The extracted context around .30-40 Krag shows recurring relationship patterns in the source. For example, .30-40 Krag → Barnes, Book, Caliber, Cartridge Dimensions, Cartridge Reloading, Cartridges, Chuck HawksHornady Handbook, Department, Ed, Frank, Gatling Gun, Government Printing Office, Handbook, Hornady Mfg Co, Iola, ISBN, Krag, Krause Publications, Sixth Edition, Skinner Another extracted example is .30-40 Krag → Although, Army, Krag, The, Winchester. Use these groups to spot repeated connection types before inspecting the individual relationships.

.30-40 Krag

Top relations

related to References · 28
.30-40 Krag → Barnes, Book, Caliber, Cartridge Dimensions, Cartridge Reloading, Cartridges, Chuck HawksHornady Handbook, Department, Ed, Frank, Gatling Gun, Government Printing Office, Handbook, Hornady Mfg Co, Iola, ISBN, Krag, Krause Publications, Sixth Edition, Skinner
related to Nomenclature and early commercial use · 5
.30-40 Krag → Although, Army, Krag, The, Winchester
Base diameter · 1
.30-40 Krag → .457 in (11.6 mm)
Bullet diameter · 1
.30-40 Krag → .308 in (7.8 mm)
Bullet mass/type · 1
.30-40 Krag → Bullet mass/type Velocity Energy 100 gr (6 g) SP 2,898 ft/s (883 m/s) 1,865 ft⋅lbf (2,529 J) 130 gr (8 g) HP 2,746 ft/s (837 m/s) 2,177 ft⋅lbf (2,952 J) 150 gr (10 g) Nos Part 2…
Case capacity · 1
.30-40 Krag → 58.0 gr H2O (3.76 cm3)
Case length · 1
.30-40 Krag → 2.314 in (58.8 mm)
Case type · 1
.30-40 Krag → Rimmed, bottleneck
Designed · 1
.30-40 Krag → early 1890s
In service · 1
.30-40 Krag → 1892–1903

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

cartridge 30-40 krag rifle new army powder smokeless 30 also use antlers elk used early loading adopted known first mm

.30-40 Krag relationships Subject–Predicate–Object triples

TTTA extracted 53 structured relationships around .30-40 Krag. Examples in this analysis include .30-40 Krag → Base diameter → .457 in (11.6 mm) and .30-40 Krag → Bullet diameter → .308 in (7.8 mm). The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
.30-40 KragBase diameter.457 in (11.6 mm)1.00infobox
.30-40 KragBullet diameter.308 in (7.8 mm)1.00infobox
.30-40 KragBullet mass/typeBullet mass/type Velocity Energy 100 gr (6 g) SP 2,898 ft/s (883 m/s) 1,865 ft⋅lbf (2,529 J) 130 gr (8 g) HP 2,746 ft/s (837 m/s) 2,177 ft⋅lbf (2,952 J) 150 gr (10 g) Nos Part 2…1.00infobox
.30-40 KragCase capacity58.0 gr H2O (3.76 cm3)1.00infobox
.30-40 KragCase length2.314 in (58.8 mm)1.00infobox
.30-40 KragCase typeRimmed, bottleneck1.00infobox
.30-40 KragDesignedearly 1890s1.00infobox
.30-40 KragIn service1892–19031.00infobox
.30-40 KragLand diameter.301 in (7.6 mm)1.00infobox
.30-40 KragMaximum CUP40,000 CUP1.00infobox
.30-40 KragMaximum pressure (C.I.P.)47,137 psi (325.00 MPa)1.00infobox
.30-40 KragNeck diameter.338 in (8.6 mm)1.00infobox
.30-40 KragOverall length3.089 in (78.5 mm)1.00infobox
.30-40 KragPlace of originUnited States1.00infobox
.30-40 KragProduced1892–present1.00infobox
.30-40 KragRim diameter.545 in (13.8 mm)1.00infobox
.30-40 KragRim thickness.064 in (1.6 mm)1.00infobox
.30-40 KragShoulder diameter.423 in (10.7 mm)1.00infobox
.30-40 KragTypeRifle1.00infobox
.30-40 KragUsed byUnited States1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around .30-40 Krag bring nearby vocabulary together. In this analysis, examples include Rifle, Powder and Smokeless. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • .30-40 Krag
    • Rifle
    • Powder
    • Smokeless
    • Loading
    • Cartridge
    • Army
    • Round
    • Krag
    • Adopted
    • First
    • Velocity
    • Ft
  • .30-40 krag
    • Rifle
    • Developed
    • Powder
    • Smokeless
    • Loading
    • Cartridge
    • Army
    • Round
    • Krag
    • Adopted
    • First
    • Selected
  • cartridge
    • Used
    • Smokeless
    • Rifle
    • Krag
    • New
    • Early
    • Small-bore
    • Developed
    • Service
    • Adopted
    • First
    • Use
  • krag–jørgensen
    • Rifle
    • Developed
    • Loading
    • Selected
    • Velocity
    • Adopted
    • Ft
    • Use
    • Used
    • Cartridge
    • Powder
    • Smokeless
  • muzzle velocity
    • Ft
    • Rifle
    • Mm
    • Loading
    • 1890s
    • Case
    • Early
    • Krag
    • Bullet
    • Developed
    • Plute
    • Rimmed
  • smokeless powder
    • First
    • Smokeless
    • Use
    • Bullet
    • Round
    • Adopted
    • Case
    • Selected
    • Small-bore
    • Although
    • Plute
    • Rimmed
  • rocky mountain elk
    • Plute
    • Record
    • Antlers
    • Used
    • Although
    • Bullet
    • Rimmed
    • Service
    • Velocity
    • Club
    • First
    • Ft
  • new york
    • Loading
    • Service
    • Antlers
    • Rifle
    • Case
    • Small-bore
    • Although
    • Springfield
    • Velocity
    • Club
    • Ft
    • Mm

Connections between topic areas Semantic bridges

For .30-40 Krag, one of the stronger structural bridges in this analysis connects .30-40 Krag with History and development. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
.30-40 Krag — History and development · splits 8 ⟂ 17
.30-40 Krag — Overview · splits 18 ⟂ 7

Map overview Semantic statistics

.30-40 Krag

Nodes25
Edges24
Triples53
Avg. degree1.92
Density0.08
Components1

Source & methodology

TTTA analyzes the structure around .30-40 Krag to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — .30-40 Krag · EN edition · Analysis: TopicsToTalkAbout

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