Hello -new member here from reno Nevada.
Just bought at auction a beautiful little sako UL camo mountian rifle build by Vern Juenke here in Reno years ago.
thought it was a 223 neckedup up to 270 but appears to be a 5.6x50R necked up. Any load data or other info out there?
not sure whether to convert to something else or try to sell it.
any ideas?
thanks
Larry

I did a quick search, but did not find any great leads on data. It looks as though the parent case is the .222 Rem Mag and not the 5.6x50R. Another avenue to pursue might be data for a .270-.222 Mag wildcat of which there seems to be a couple of variations.

Components should be easy to come by, dies I'm not sure of.

Welcome to ShootersForum, Larry (SilverStates&W)

Sounds like a chamber cast is in order, to determine exactly what parent brass you're going to need for your rifle. It could be either case, but the difference would be fairly obvious; the 5.6x50R is rimmed and it's about .100" longer. Also, the bolt-face itself will be a dead give-away. Either it's ~.429" for the rimmed case or ~.378" for the 222 parent case. It's entirely possible the gunsmith built two similar chambers, one rimless and one rimmed.

Either way, you could shoot it "as-is", if you have dies made for it, or you can rechamber. Depending on what bolt face you have, there are good options available that are far less obscure. I'd be very interested to hear what you find out.

Sounds like a neat find. I would get the chamber dimensions and then probably start carefully working up data with Load from a Disk or Quickload or similar.

__________________
MikeG

There is loading data for the 270 Ingram (270x223)

Here little history
ICL cartridges - Wikipedia, the free encyclopedia

As to the 5.6x50 R that should be the 5.6x50 made by RWS. that case was used of lot of the wildcat made for BR calibers like 222x45 etc my 6x47x45 used that case didn't required as much fireforming.

Thanks guys, I've decided this beautifil rifle is for sale as its more to load for than I originally thought.
Cartridges of the world shows it a 5.6x50r MAG parent case.
I may have located as set of dies for it which I will include with the rifle for $1000.
PM to "magman1@Live.com" if u might be interested.
thanks all..

Double check the 5.6x50R case, the "R" designates Rimmed.