I bought a Douglas Barrel supposibly in 7.62 Variant? Does anybody have any information on this caliber, or even if there is such a caliber. I have searched all my reloading books to no avail. The barrel has way more enough to be rechambered to another 30 Caliber. What caliber could this be rechambered to that will remove the 7.62 Variant. Thanks For any information. I realize there are many wild cat calibers that I don't even know about. I am not the brightest bulb on the Christmas Tree. LOL Thanks lou