If you have ever had the pleasure of firing a Martini, you can feel and see the energy and effect that large slow round had on a target, the cast iron target holders at my range literally rock backwards with the percussive effect of the impated energy.

A Bira would have been hellish to be on the receiving end of!

I believe you can still own and shoot one in the UKicon with an FAC, as they are hand cranked.

Is that still the case?

That said, buying enough cases to feed it would probably cost as much as the Bira cost to buy these days.