[Michael Zeleny]

Thanks to all for thoughtful replies. The Mauser Parabellum is a 9mm. I would like to count on it for social work. I used two original Mauser magazines that were very tight laterally. The East German 2/1001 milled rework magazine that inspired my hopes of perfect functioning, did not feed at all. I fired around 170 rounds, most of them Axis FMJ, such as 115gr Fiocchi and 124gr Geco, with a few 123gr Hirtenbergers thrown in. The OAL is about as long as it gets. Everything easily stays in the black offhand at the point of aim at 15 meters. The failures to eject were most prevalent, about once midway through every other magazine, with the breech stopped from closing on a half-chambered round by the flipped over fired case. At the end I managed to empty two magazines of Remington Express 9mm +P 115gr JHP that felt a lot more welcome in the toggle action, suggesting a taste for higher pressures.