A sporterised Lithgow .303 SMLE
Google the phrase and you will get hundreds of hits.
A SPORTERISED SMLE .303 RIFLE WITH A THUMHOLE STOCK.
Bren gun, Lewis gun, SMLE rifle
2441 feet per second when fired from the British SMLE rifle. Velocity will vary when fired from rifles with a longer or shorter barrel.
Assuming you mean a British MILITARY rifle, such as the SMLE, between $100-$350, depending on condition and originality. Rifles that have been "sporterized" lose much of their value as a collector's item.
Assuming you mean a rifle such as the SMLE, the cartridge used in the .303 Enfield, also called .303 British. See the link below for information on this ammo. However, if you are not certain (some military surplus rifles were rebarreled into other calibers) have a gunsmith take a look at it.
An SMLE rifle comes in three types: SMLE Mk III - 1132mm / 44.57" SMLE No. 4 Mk 1 - 1129mm / 44.45" SMLE No. 5 "Jungle Carbine" - 1003mm / 39.49"
Gunsmiths, gun shows, and on-line sources such as gunpartscorp.com, and brownells.com. You will need to know which model .303 you have. If you do not know, visit surplusrifle.com, and check Enfield and SMLE.
The Lee-Enfield .303 Mk.1 and other variants to the SMLE Mk.III.
A British empire made rifle used during WW1, WW2 and still to be found & used in many, many countries. A very well made & dependable bolt action rifle with a 10 round magazine.
The Ross .303 rifle was initially issued to Canadian troops during World War 1. It was highly accurate, but due to its unreliability it was unsuitable for use in the muck and grime of the trenches and so was retained only by snipers and marksman. The rest of Canadian forces were reissued with the Lee-Enfield .303 SMLE.