No one ever mentions meplat diameter. With cast bullets, the only dimension that matters is meplat diameter.
Unless they're Keith SWC's, where the shoulder plays a role as well.
The problem with increasing meplats and bullet length is that as they get wider and longer, they need to be driven at times to absolute max to stabilize and shoot well, in any cartridge.
You bring up another good point about 45 Colt chambers; yes, a lot of them are still cut "Colt" style, but anyone using carbide dies in any straightwall handgun cartridge to get the cases to function in every gun is creating that condition.
I ditched the carbide dies to get brass that would load in my 29-2 and my Redhawk without issues.
I think if they are all the same, the 41 Magnum should get thrown in this discussion...
