43R Deep, 3D Printed ammunition

@generallyaccuraterodentyeeter 5.4MiB Updated September 18, 2025, 6:42 AM Released September 17, 2025, 8:12 PM 0.010LBC 1 Reposts

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This file includes models tools, and load data needed to make 43R deep ammunition.

This information is for educational purposes only.

43R is a new cartridge that has been developed to be 3d printed. The barrel used for these loads is a 3/8" nominal seamless steel pipe (ASTM A733 specifically). The pipe has no chamber, and other than cutting to length (18 inches or longer) and deburing, there is no post processing required.

The Modelo Polylactico Is the only platform that 43R has been tested thoroughly with.

This ammunitions was developed to be made out of materials/components cheap and readily available to US citizens, primers and smokeless powder are required.

If there are any different types of 43R loads you would like to see be developed, Please leave a comment or come tells us about it at Black Lotus Coalition.

There will be more 43R content to come.

LBRY Tags: 3d printed ammo; mr deep; blc; education; 43r