Are you certain we're referring to the same firm?

Some of their products are presently available in the U.S. from Graf & Sons.

I made enquiry with Aussie Copper Projectiles via their website on Monday, 02 October, and received a prompt reply from their Company Director, Mark Savage.

Unfortunately, Mr. Savage did not have any direct experience using his products with the Mannlicher Schoenauer nor any feedback to share from MS shooters who have.

Has anyone here used them in an M1910?

Has anyone here used any currently available .375 (9.5mm) non lead projectile that performs well and cycles flawlessly through the Schoenauer magazine?

BR.