A really big rimfire — The 18mm Perlaz BernandA cartridge that was made in Switzerland, th
A really big rimfire — The 18mm Perlaz BernandA cartridge that was made in Switzerland, the 18mm Perlatz Bernard rimfire, aka the 18mm Swiss (.70 caliber), was a large black powder cartridge made in the 1860’s. It was made to be used for muskets that had been converted into breechloading rifles. Many military muskets at the time used very large calibers from .58 to .75. Thus breechloading conversions required very large rimfire cartridges. -- source link
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