First five shots with low pressure .325″ cast rounds (215 gr. w 18 gr. 2400) went into a 6″ black @ 100 yds. I will be installing a nice peep sight for my degraded eyes.
Markings on side of receiver match up to the below. Large ring 98.
Nitroproof for rifled barrels
Stahl Mantel Geschoss (Steel Jacked Bullet)