Swedish Rolling Block Incoming

[Sir Charles deMouton-Black]

Last November I actually saw a Kamerlader. BEHIND GLASS in a museum in Sweden. It was a Match prize rifle, engraved with the winners name and event. I guess this was during the period that the two countries were in a United Kingdom situation?

[Tascosa Joe]

Deacon: Did you get anything shootable out of this deal?

[DeaconKC]

Yes, I did. A RB in 12.7x42 [same as .50-70 Government], the rifle is not as pretty but seems to be in fine condition, but getting the components together is time consuming.

[Major 2]

Yes, I did. A RB in 12.7x42 [same as .50-70 Government], the rifle is not as pretty but seems to be in fine condition, but getting the components together is time consuming.

Photos 

[Tascosa Joe]

Deacon: I thought the 12.7X42 were Rim Fire.  Mine is a 12.7X44R and it is almost a 50-70, but it uses .50 Alaskan cases.
Glad you finally got one.
Joe

[Cap'n Redneck]

The original military round approved in 1867 for the then "United kingdoms of Sweden & Norway" (1814-1905) was rimfire and one of the modern designations is "12,17 x 42mmR".
In military parlance the cartridge was first called "4 linjers kobberpatron til infanterigevær", then from July 23rd. 1879 we went metric and the cartridge was called "Patron til 12mm gevær".  https://www.kvf.no/ammo-12x44R.php
In 1871 the Norwegian army decided to use a heavier bullet than the Swedes, and consequently lengthened the cartridge to 44mm in order to accommodate the same powder charge.
This gave rise to the myth that the "cunning Norwegians" set up their rifles to fire both Norwegian and Swedish cartridges in the event a "War of Independence" erupted, while the Swedes would be unable to chamber any captured Norwegian "long" ammo.

In reality most of the Swedish chambers are so generous that they will chamber the 44mm cartridge.

Almost all of the military Rolling Blocks were converted to centerfire when they were sold on the civilian market.  Some had the rimfire-hole in the breech-block plugged, while some retained the possibility of shifting the firing-pin back to the rimfire position should one come across a supply of cheap surplus ammo.