[DonVoigt]

Thanks Jeff,
That does help. I won't screw up your case.

I'm one of the guys who has had good results with Fiocchi black box but 93g JSP not ball.

Headed to the range today with two .30 lugers and five kinds/brands of ammo. I'll see
how these shake out.

All this may have more to do with pistol/mag combination than ammo.

But I have first hand knowledge of at least one .30 Comm. that belonged to me, that worked fine with the Fiocchi soft point mentioned above, but when sold to another guy who had Fiocchi black box ball, it would not function except as single shot! Got it back and it still worked fine with my JSP ammo. What a mystery to un-ravel.

Thanks again for your posts.