In addition to barrels, they were busy with 20mm x 113mm Aircraft Machine Gun cartridges. The Finnish also used a 20mm x 138mm semi-auto rifle cartridge. It is basicly a scaled-up belted .300 H&H Magnum cartridge. DDR
Jarkko: Thank you very much for that information! I appreciate the clarifications. I only repeated (out of my ignorance) what it was called when I acquired it. DDR
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