Yep. Soften the alloy up a bit, and I think you'll start seeing where you need to go.
It can't really be considered a 'failure', can it? You still got to shoot your own bullets, and have some fun at the range, right?
For nearly anything in cast bullets, there are almost always at least two ways to get the job done.
In the case of heavy bullets for .444 Marlin, for example, we are always fighting the desire for expansion and the need for a hard(ish) alloy. But, the most common failure of such bullets is shearing of the nose, which ends up turning the bullet into a short and stubby conical.
If you try to use a hard alloy (18+ BHN) with a wide meplat, you get this:
325 gr nose shearing. (The image I'm most interested in is at about 1:16.)
If you go too soft (~9 BHN) to get more expansion, you get ridiculous leading and the bullet does this:
455 SG shrapnel. (The pertinent close-ups are at about 1:16 again.)
A certain person that I know very well decided to re-contour the nose of the bullet to prevent shearing (pretty close to a Postell design, really), in order to be able to use a 'medium' alloy (~13 BHN). At lower velocities, it does this:
FrankenMauser 22 jugs.
But, at designed impact velocities (1,800-2,000 fps), the nose swells and it comes out looking like a slightly dinged-up WFN. (Can't find my picture.
)
Why am I babbling about this crap, on a Hollow Point thread?
...Because people use the same approaches to get the desired results.
Some people use a softer alloy.
Some people use a smaller hollow point.
And crazy people redesign the bullet. (Don't look at me. I'm just 'special'.
)