This I CAN tell you, the U.S, Navy TRIED it, ....and it was a complete debacle,......those few that did stay in the original M1 '06 chambers did not deliver but mediocre accuracy. The literally paper thin, press fitted "Adaptor insert" flying out on a fired case did not stop the next round from feeding and firing, either. That of course leaves a rather odd looking fire formed case....

I guess the Navy re-barreled a bunch to 7.62 X 51, after scrapping the Rube Goldberg "Adapter /insert" lash up.

Dunno about the Army,.....

GTC




Member, Clan of the Border Rats
-- “Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.”- Mark Twain