27.5mm unknown any info

I recently puchased this 27.5mm dummy any one have any info on this rd type of cannon? US? forgien?

Probably a 27.5x160 XPL Amron “Bushmater” forerunner



I posted a thread on a similar 27.5mm round with a different projectile that seems to have the same case with similar markings. Your round may be manufactured by the same company???

iaaforum.org/forum2/viewtopic.ph … hlight=5mm

Thanks Jason I knew I heard about this round some where