When you consider the load on that bullet, it really didn't penetrate that well. When shooting a 500grn bullet and 80grns of bh it's really a stout load. Probably more so then me shooting 140grns with a 200grn bullet. You definitely can't compare to the other bullets tested but a lot of bullets penetrated further anyway. I seen several hogs shot with those big heavy conicals with very poor results. I think I see why now, they just didnt penetrate enough.
But I do think that bullet would blow any Deer over for sure.

A bullet that big sure did a number back in the day of the buffalo hunter.

Flounder,
I have no clue how or where to start making bullets. But I'm curious why you make such a blunt nose on that bullet?

On non-hollowpoint cast bullets, the bigger the meplat the more effective the bullet is on game. This is true for both hard cast and soft cast bullets.

Pointy cast bullets have a bad reputation for penciling through with insufficient shock effect.

Thanks Semi, I have some hunterman lead bullets and they are all more pointy. I don't remember shooting anything with them.

At the widest, the mushroom is 1/64" less than 7/8"; if one wishes to say it has expanded to 7/8" that is close enough.

This hog shot by Ed Mehlig seemed to think that lead conicals work pretty well

That really is pretty normal for a 50 cal. heavy lead conical. And normally the expansion occurs below the nose of the bullet through 1st and 2nd band of the bullet.

At that point the meplat has become so wide that it really slows the velocity and energy of the bullet - but normally by that time the bullet has done its work.

The really GREAT thing in my mind is that those large lead conicals do not 'PANCAKE' or blow up like the lighter lead conicals.

Sectional density of 0.281 with a bullet weight of 500 and diameter of .504".

Thats pretty stout but not as good as a .451 460gr.

Sectional density of 0.323 with a bullet weight of 460 and diameter of .451".

Yet, I remember several years ago on one or more of the Hog Hunts that Big 6x6 and that crew went on somewhere down there and maybe you were a part of one of those expeditions - they really struggled with big lead conicals getting the job done on the big hogs they were shooting. I do not remember which ones they were using but it did not make many people happy on the hunt.