I have a dozen or so of these and shoot them with handloads runnng about 2250 ft/sc with a 180 flatbase bullet. Enfield rifling does not like boat-tails, thinks flatbases are candy.
Commercial ammo should be okay but will be steamier than my loads.
Military spec was 2440 ft/sec with a 174-grain flatbase bullet.
If the rifle does not shoot under 8 inches at 100 yards, likely the fore-end is cracked at its back end, right where the trigger and sear interface. This is The Damned Crack, and it is responsible for more bad-shooting SMLEs than two-thrds of all the won-out barrels ever made. Barrels on these rifles last a VERY long time. If accuacy sddenly goes to pt, the problem is that Damned Crack.
Have fun!
Hope this helps.
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