File:Comparative image 7.62NATO 5.56NATO and 4.5x26MKR cartridges.jpg
Appearance
Comparative_image_7.62NATO_5.56NATO_and_4.5x26MKR_cartridges.jpg (392 × 254 pixels, file size: 13 KB, MIME type: image/jpeg)
Summary
[edit]Description | A rare black and white image showing an experimental rimfire cartridge of swedish design, the 4.5x26MKR, side by side with common military cartridges 7.62x51NATO and 5.56x45NATO on millimetre squared graph paper. The MKR bullet has extra long curving ogive and marked boat tail to maximise its ballistic coefficient which would otherwise be much lower for a bullet of its weight due to its low sectional density. |
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Author or copyright owner |
Without doubt the defunct Swedish Interdynamics Corporation as no prototypes were sold off. |
Source (WP:NFCC#4) | Original publication: Unknown technical book, itself reproducing poor images from press releases by Swedish Interdynamics Corporation. Immediate source: https://strzelecka.net/viewtopic.php?f=2&t=1581&start=0 |
Date of publication | Early 1980s |
Use in article (WP:NFCC#7) | 4.5×26mm MKR |
Purpose of use in article (WP:NFCC#8) | It is the only image I know of which effectively shows the unusual design of the MKR cartridge, particularly the marked boat tail as well as comparing to common military cartridges of the 1980s. |
Not replaceable with free media because (WP:NFCC#1) |
I have seen no similar photo showing the boat tail design of the MKR bullet. There are less than half a dozen images of the MKR ammunition out there, all grainy black and white. |
Minimal use (WP:NFCC#3) | It only really pertains to the article on the unusual 4.5x26MKR project. |
Respect for commercial opportunities (WP:NFCC#2) |
The MKR was a military/commercial non-success and never advanced beyond prototypes. A few grainy black and white images of unicorn-rarity are extant, this being one of them. |
Other information | no |
Fair useFair use of copyrighted material in the context of 4.5×26mm MKR//en.wikipedia.org/wiki/File:Comparative_image_7.62NATO_5.56NATO_and_4.5x26MKR_cartridges.jpgtrue |
Licensing
[edit]![]() | This work is copyrighted (or assumed to be copyrighted) and unlicensed. It does not fall into one of the blanket acceptable non-free content categories listed at Wikipedia:Non-free content § Images or Wikipedia:Non-free content § Audio clips, and it is not covered by a more specific non-free content license listed at Category:Wikipedia non-free file copyright templates. However, it is believed that the use of this work:
qualifies as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content and Wikipedia:Copyrights. | ||
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:01, 29 October 2019 | ![]() | 392 × 254 (13 KB) | DatBot (talk | contribs) | Reduce size of non-free image (BOT - disable) |
03:22, 28 October 2019 | No thumbnail | 424 × 275 (29 KB) | Petlif (talk | contribs) | Uploading a non-free file using File Upload Wizard |
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File usage
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