Allen,

I think there are two things that help Wbys.

Firstly is the cartridges. With the exception of the 416 and 460 they all have chamber diameters far larger than the bullet diameter. In the case of the 416 and 460 while bullet diameter is heading up to chamber diameter and round nose blunt bullets are common, they have the in line magazine.

Secondly, their feeding is completely controlled by the magazine box and I think that is easier to get right on a mass produced gun than it is to get the action right. A 303 SMLE is another good example.

Mike