At the B&M forum they are stuck on the brass CEB solid bullets with the weird band structures and bore-rifing noses meant for short&tight-throated chambers and COL-challenged magazine rifles.
The Hammer PDR bands are a different approach. The more of them, the lower the pressure and fouling will be. They are a sinusoidal sort of oscillation between groove diameter and just barely below bore diameter. IIRC, the peak is 0.458" and the trough is 0.448" on that 404-g Shock Hammer.
The .458 WinMag throat is especially well suited to having the full bearing diameter well forward on the bullet. No big need for bore-riding nose to fit in a short and tight throat. No drive bands standing abruptly proud. The low drag PDR bands will fit into the SAAMI .458 WinMag throat all the way to 0.6725" forward of case mouth.
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.
