No idea what you mean by charge?
Hollow nosed bullets were used at the shooting incident at WHF and are the most lethal:
https://youtu.be/xb9nXeXqEho
Which sort of proves my point.
Overpressure ammunition, commonly designated as +P or +P+, is small arms ammunition that has been loaded to a higher internal pressure than is standard for ammunition of its caliber (see internal ballistics), but less than the pressures generated by a proof round. This is done typically to produce rounds with a higher muzzle velocity and stopping power, such as ammunition used for defensive purposes. Because of this, +P ammunition is typically found in handgun calibers which might be used for defensive purposes.
Generally, the “magnum” fires precisely the same bullet but it fires it from a longer cartridge. That longer cartridge contains more propellant, so, if the gun is properly engineered, the bullet will leave the gun at a higher velocity than the standard gun/cartridge. ... Magnum means “bigger cartridge”.
As I stated previously, the ammo Bamber was using was only suitable for shooting small animals and birds and not human beings.