I have reloaded for a number of Lee Enfields. Fazakerley No 4 Mark 1 and 2, Long Branch No 4's, Lithgowicon No 1 Mk III's , and one Savage No 4 Mark 1*.

The shoulder profiles on the fired cases have any number of different shapes, from sharp angles to smooth curves. The shoulder distance from the base is as varied as the autumn leaves.

I gave up trying to measure headspace on these things as all headspace greater than my American gages.

About the only thing common to the chamber of these rifles is that they will fire factory ammunition.