Back in the 60's the only Boxer primed surplus 8mm available here was the Canadianicon BESA machinegun loads made for the MG used on some UKicon tanks. It shot great and was reloadable so long as you annealed the necks after first firing. I only used the cases for light loads so I can't say how well they'd have worked with heavier loads.
Guess all that ammo dried up long ago.
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