We have several at Warminster and we do have a 'quantity' of ammunition which we share with Shrivenham.
Contrary to popular belief, only 60ish were ever manufactured in the UK. The issue of whether they were 'approved' 'authorised' or 'issued' is a moot point. All I can say, after having fired a few and dissected them is that we made the right choice by adopting the L1A1.
In truth, the mere notion that a soldier, however clever and mechanically literate he might be, could field strip and assemble the bolt of an EN rifle, then get it to work afterwards, is sheer fantasy.
When I look at an EM and an L1A1 side by side, as they are at Warminster, I realise that there is a god after all. Sorry EM...............