This? New Russian 9.6x53mm Lancaster Cartridgeearlwb wrote:It may be using an oval barrel like that Russian gun that was made for Russians recently. They use an oval barrel that has a twist to it to impart the spin....
More on Charles Lancaster and Lancaster barrels:
https://en.wikipedia.org/wiki/Charles_William_Lancaster
http://firearmshistory.blogspot.com/201 ... ndian.html