SMLE Bolt Head Underturn

[Peter Laidler]

The same applied to some No4 bolts, believe me! It's all down to drawing/machine tolerances. But the mere fact that you have bolts that will fit into rifles means that someone in the past(hopefully an Armourer....) will have fixed any underturn problems that might have been there initially.

As I said, we all made various tools during our apprenticeship but like most of these special tools, you used them during the course of the apprenticeship but once you got into the real world, you learned to do the job - properly!

If you have too much overturn, which you can, easily, the load of discharge is transmitted through the threads as opposed to the full diameter of the bolt