3D printing dummy rounds?

[Not_A_Llama]

Hot glue sticks work reasonably well, either cut or injected in bullet molds. LEGO heads work in 40SW.

[00tec]

Printed a 45acp round. Was a tight fit at first, probably due to the layer start points (little extra at each start). Once I chambered it once, it was fine. Didnt undersize at all. Did 5mm of solid base, then 25% infill. It is within .003" of perfect round.

[Gunner]

Printed a 45acp round. Was a tight fit at first, probably due to the layer start points (little extra at each start). Once I chambered it once, it was fine. Didnt undersize at all. Did 5mm of solid base, then 25% infill. It is within .003" of perfect round.

Didn?t mess up the rim or anything ejected just fine?


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[00tec]

Ejected fine. Kinda surprised. I'm just using cheap Microcenter PLA. Ran it through the glock a few times, not even marking bad.

https://photos.app.goo.gl/pqmLkykB9cxyxfw8A