Enfield No.4 Mk1/2 to 500yds: Practical Accuracy

The Enfield No.4 Mk1/2 was the workhorse of the British Commonwealth... and also one of my favorite rifles to shoot. This one is even missing some rifling... how well does it shoot to 500yards? Ammunition used: German MEN .303 British, these were loaded very close to British Radway Green Mark VII 174grain .303 cartridges. Shopping with this link costs you nothing, but provides us with equipment: Distance Conversions: 150y - 137m 200y - 182m 250y - 229m 300y - 2