I'm just getting started casting so I have a lot of newbie questions to ask. I just found out that different loads need different hardness of the bullets to properly function at a given pressure. If I understand this correctly harder isn't necessarily better. First question, So what hardness do I need for a 41 magnum where the pressure is about 35,500 psi. ? Second question, will a gas check have a bearing on how hard the bullet needs to be to function properly. Third question, does powder coating vs. traditional lubes make a difference as far as bullet hardness? I would appreciate any information.