Obviously Ermey was successful in allowing the Brit to frame what many consider to the be pinnacle of British firearm technology. ;-)
I think the SMLE could in some sense be called an American invention. James Paris Lee was born in Scotland but became an American and was American when he designed the original rifle.
Although the design went through a lot of development, one has only to look at one of the American Lee Navy rifles to see that it was basically the same gun from the very start.
BTW, the U.S. Marines used them very effectively in the Boxer conflict when the embassies of the European nations plus Japan were besieged in Peking.
It's the slickest action I've ever worked . . . and I have way too many bolt action rifles hanging around the joint.
My husband prefers the FN-FAL, certainly his rate of fire is higher, but my rifle is cooler. Really. :-0D