The Lee-Enfield rifle is commonly referred to as simply an Enfield. I do not know anyone that gets upset at that even though Enfield also made handguns (and a number of other firearms).
I too get anal about nomenclature like magazine vs. clip, but Mosin Nagant is not one of my anal issues (perhaps because I do not own either)
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball