Attachment 45982
Attachment 45983
Attachment 45984
Attachment 45985
Testing spring weights with a trigger pull gauge. No1 MkIII (& III*) (not all pictured)
trigger, first pressure 3 to 4lb
trigger, second pressure 5 to 6 1/2lb
main spring, fired position, 7 to 9lb
main spring, full-cock position, 14 to 16lb
extractor, 7lb
bolt head retaining spring, 10 to 16lb
butt trap spring, 2 to 3lb
Details of how to do these tests properly are in The Lee Enfield Story, starting about page 164