You'll have to open the ID of the washer "Slightly" to clear the fillet(radius) at the lugs, but don't enlarge it too much or it can drop down and hang up on the edge of the action lug recess then you'll be buying a new one. Experience is a good teacher BTW!
When I'm truing a bolt head I'll remove the fillet and leave the washer as-is.
If its worth doing is pretty much up to you.
Bill
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