Well again, I can't very well pick a bullet if I don't know its specs (hardness)
That's why I sent you to a site where you can pick whatever bullets you want in several different stated hardness levels. I though you were unhappy because the bullets you have are causing leading and the manufacturer wasn't supplying adequate info.
Zero doesn't tell me that. Midway's description doesn't tell me that.
Right. As I said, I was trying to give you a source for a better option with all the info you need to get good results.
Why is it so important to dismiss the question?
Dismiss the question? We were ANSWERING the question. I haven't seen anyone dismiss it. You have leading problems. That's fixable with better bullets, better loads, and more information -- or a combinations of those.
We're just starting to get some useful deductions here.
Just starting to? Naah. Lead bullets and leading have been well understood for a long time. It's just unfortunately easy to pick up components that don't work well together and/or with your gun.
If the swaging thing is an entity unto itself, there should be separate loads for it.
It's all a spectrum. You can buy swaged soft lead, mild 12 BN hardness, or upper-end 18 BN hardness, whatever you need for your kind of loads. The load books offer recipes that will work with any of those if you know how to build the right combination.
Perhaps many of the loads are in fact for the softer lead, because the accompanying documentation unfailingly cautions against going above 1100fps. I do see separate loads for "MEI" that run to higher velocities, but that is only in Hodgdon and even there it still says "cast".
It isn't really a matter of velocity,
per se, but of pressure. You need to match the pressure of the load you want to use with a bullet which will obdurate properly at that pressure.
Again, if you read the short write-up Brad posted at his Missouri Bullet Co. site it will explain it very clearly.
Now, he doesn't sell dead soft swaged bullets, as very few people really want them, but at least he explains why leading can occur in terms applicable to your situation.