It has been my experience that Golden Saber JHP has the closest profile to Ball.
Not my choice, but mostly because it doesn't feed in my SIG 220
This would be my recommendation, find a hollow point that is similar in profile as ball ammunition. There used to be some bullets available that fit this idea.
If you are into casting, Lee makes, or used to make a hollow point mold that was the ball ammo bullet with a hollow cavity in it. But, you may not reload and may not wish to carry reloaded ammunition for self defense.
In my older 1911's, I've never had much luck getting hollow point bullets to work perfectly like ball ammo. Therefore, i've never tried hollowpoints in my newer 1911's.
I felt 45 caliber ball was adequate due to the large diameter if the bullet to begin with. But, I've never know a government to not allow FMJ ammunition.