Why is an American the only one that understands what this means in a Canadian No.4 Enfield manual.
(I'm saying this because one of you rat ba$tards asked my why the White House was painted white)
The key word above is "may", if the fore stock has more than .020 wood crush below the receiver and trigger guard normally the fore stock would be replaced because the "angle" of the trigger guard was too great to make adjustments to the trigger lobes.
Below, as the angle decreases you reach a point that no further adjustments can be made to the trigger that will give proper 1st and 2nd stage pulls.(remember they move the trigger and hung it from the receiver socket for a reason)
The 'MAY" means you can't get Enfield stocks any more so you "MAY" have to bend the trigger guard to "decrease" the angle instead of loosing a perfectly good Enfield for the Canadian Rangers.
Below, 1st and 2nd stage pull, please notice "where" the sear is at the end of second stage pull. The location of the sear determines "let off" and the "angle" of the sear control the weight of pull.
A punch or set screw for over travel or sear stop.
If you want to keep your Enfield "as is" buy a replacement cocking piece, change the angle of the bent and I guarantee your trigger will be slicker than snot on a door knob.
And remember Canadians, it only took Mel Gibson an hour and forty-seven minutes to defeat General Cornwallis at Yorktown.