I collect Enfield rifles so I can give you some advice, if the Enfield has not been cut down or sporterized I would leave it it in its military configuration just for its collectors value. You can get a Stevens 200 in 30-06 for around $300.00 and have a flatter shooting cartridge. The majority of factory loaded .303 British is loaded with round nose flat base ammunition, and the pointed spitzer bullets are boat tail and shoot poorly in the Enfield rifle.
The second thing not in your favor are the wooden military stocks on the Enfield which were hot dipped in raw linseed oil when new and required monthly re-oiling to keep the stock hydrated. In other words you may have wood shrinkage and bedding problems with your fore stock if the wood was not kept oiled.
I have many Enfield manuals if you wish to learn more about your Canadian made Enfield rifle and if it is sporterized I can help you get it in shape for hunting. The .303 British is approximately the same as the 30-40 Krag ballisticlly.
Below are No.4 Enfield manuals I donated to the website below.
Milsurps - 1991 No.4 (All Marks) .303 Rifle Manuals (Complete Set)
Milsurps - REME Precis No. SA/Rifles/3 (Zeroing of No.1, No.3, No.4, No.5 Rifles)