SMLE- aka the Lee Enfield
Will depend on condition, originality, and completeness- many of the SMLEs have been "sporterized". An original SMLE could be anywhere from $150-$300.
50-160 USD
S-short rifle M-magazine fed L-lee E-enfield
The Lee-Enfield rifle, (SMLE Mk III).
Entire books have been written on Lee Enfield Rifles. You'll have to narrow it down a little. A Wikipedia search for SMLE will help you get started.
303 was the .303 inch diameter bullet that was fired by the Short Magazine Lee Enfield- or SMLE. Standard rifle of the British military from 1907 to the1960s, and still in limited use today.
The SMLE. Short Magazine Lee Enfield rifle. Picture above.
The Lee-Enfield .303 Mk.1 and other variants to the SMLE Mk.III.
The Lee-Enfield SMLE MkIII (1914). the first gun that canadians were given was the ross rifle
They used the MLE (Magazine Lee-Enfield) version from 1895-1907 And they started using the SMLE (Short Magazine Lee-Enfied version in 1907 and still use it. There are various versions of the SMLE firing different calibre and such. They are also a popular hunting and competition rifle now. <><><><><> The Enfield No4 Mk 1 was replaced as a standard service rifle by the L1A1 about 1954. However, some are still in use today for special purposes.
".303 British" is usually used to denote a caliber, as opposed to a specific firearm. Perhaps the most famous rifle in that caliber was the SMLE, which is the abbreviation for Short, Magazine, Lee Enfield. There were several marks and models of British military rifles that originated under that designation, all in that caliber. They were made from prior to WW I, and continued through the Commonwealth nations (and former Commonwealth nations) into about the 1960s. So, yes, the caliber .303 British and the Enfield name are linked- but Enfield is not the full name of the rifles and carbines. Run a Wikipedia search on SMLE for some more reading.