View source for 4.5x26mm MKR

{{infobox firearm cartridge
|name=4.5 mm mkr
|image= 
|caption=
|origin={{flagcountry|Sweden}}
|type=[[Rifle]]
<!-- Service history -->
|service= 
|used_by=
|wars= 
<!-- Production history -->
|designer= 
|design_date=1980s
|manufacturer=Interdynamics AB
|production_date=
|number=Prototype only
|variants= 
<!-- Specifications -->
|is_SI_specs=
|parent=[[.22 WMR]]
|case_type=
|bullet=.177
|neck=
|shoulder=
|base=
|rim_dia=
|rim_thick=
|case_length=
|length=
|case_capacity=
|rifling=
|primer=
|max_pressure=
|max_cup=
|filling=
|filling_weight=
|detonation=
|yield=
<!-- Ballistic performance -->
|is_SI_ballistics=
|bwunit=
|bw1=
|btype1=
|vel1=
|en1=
|bw2=
|btype2=
|vel2=
|en2=
|bw3=
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|bw4=
|btype4=
|vel4=
|en4=
|bw5=
|btype5=
|vel5=
|en5=
|test_barrel_length=
|balsrc= 
}}

The '''4.5 mm mkr''' [[Cartridge (firearms)|cartridge]] was developed by [[Interdynamics AB]], a Swedish company, in the 1980s.
It was essentially a [[.22 WMR]] necked down to a 4.5&nbsp;mm bullet, designed to be used in the [[Interdynamics MKR]] rifle.

Due to concerns about stopping power and problems with using rimfire ammunition the MKR project was abandoned at the prototype stage and thus the 4.5&nbsp;mm mkr never saw service or any kind of widespread use.

==Specifications==
<pre>
Bullet width:      4.5&nbsp;mm (.177 in)
Bullet weight:     1.58&nbsp;g (24.4&nbsp;gr)
Muzzle velocity:   1,000&nbsp;m/s (3,270&nbsp;ft/s)
</pre>

==References==
*http://world.guns.ru/assault/as63-e.htm

[[Category:Pistol and rifle cartridges]]
[[Category:Weapons of Sweden]]

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[[Category:2Fix]]