In the CVA manual for break actions
http://www.cva.com/warranty/OptimaWarrBook.pdf
theTable1that deals with the minimum and maximum charge of powder mentions that the "Pellet" minimum and maximum is 50 and 100, then it also lists "Magnum Pellet" maximum is 150.
Is this just their way of showing to use 100 grains max unless the rifle can handle magnum loads ... then 150 grains of pellets is OK?