My friend’s Dad just passed away and one of his guns is said to be chambered in 250 Soryser. We have been unable to find any information on the cartridge so I thought I would check here to see if anyone has any information on this cartridge. There is some stuff with the gun leads him to think the cartridge is likely a .308 Win. necked to 25 caliber but there was no additional information with the gun or the equipment. Next drill is to cast the chamber when we have time.
thanks in advance.