Yep. I use 3 balls and 18.5 grains of BLUEDOT from a 1.6cc Lee dipper. All three balls will group inside the head of a zombie at 25 yards.
Next trick will be to use the Speer .45 Long Colt shot capsules to increase birdshot capacity of the .458 WinMag to greater than that of the SAAMI .458 Lott.
Heretofor the only area of superiority of the .458 Lott has been with rat-killin' shot loads. That too is now in jeopardy.
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.