Just a thought. LE were in continuous use in international conflict for about 100 years. Mauser and Mosin similar but shorter. Difference is that Mauser sold from the factory. Yes, the Britishgovernment manufactured the LE and any sales were between governments.
Mosin remained Russian/USSR; very little elsewhere. Unchanged calibre. A few main models. Use mainly Russiain WW I. Main use stopped by 1945.
Mauser sold directly to many governments, some with licensed production included. Many different models and calibres related to the client. Use in many small conflicts but large-scale use mainly WW I and WW II. Main use between about 1900 and 1945.
LE a few and definitive models, with huge numbers especially during world war years. Virtually unchanged calibre throughout all models' life. Used often by many countries in many any-size conflicts including WW I, WW II, Korea; Europe, Africa, Far East. Used in battle from about 1890 up to 1953. P14 little use anywhere.
03/P17 Single user for a short period in WW I, already replaced by 1940. Use in other conflicts?