Bullet By Sybren Vanheeswyck on 23 Dec 11:02

Rendering looks really great and the description is A+ "first bullet attempt"

I'd say to make this a more plausible cartridge, you should modify the neck length on the case. You could shorten it a bit, and then increase the length slightly from the shoulder, down to the head. Also, if you make the tip of your bullet (I don't know the dimensions you used) a .5mm dia circle, you can then fillet it to .25mm and you get a very nice realistic tip.

Hope my advice helps a bit :)