Sorry for my English lol. This stl file i found it yesterday by accident lol.was for HDR50 but i look and i saw the hole was very big and then i adjust the size on cura slicer 3 times until to find the best size for the mag and for the steel balls.i was lucky i had 5 13mm steel balls ..Thank you for your comment my friend 👍🏻🙂
I spend time to every single model projectiles that i print to have best fitment if possible. I compare some famous slugs 3d printet that i ordered before long time with very similar shape from the slugs i print and i understand the difference between my slugs and other slugs.the other slugs was worst from my slugs on fitment in the HDR50 mag.
