When loading wadcutter bullets the profile of the seating stem must match the profile of the bullet being seated. Round nose bullets require a round nose stem, semi-wadcutter require a SWC stem. Wadcutter bullets require a wadcutter stem. Get your dies out and see what came with your set. The hollwow based wadcutter bullets are soft so must be seated carefully to avoid deforming the , then apply a light crimp.
They can be loaded upside down to create a big hollow point but the flat or wadcutter profile stem has to be used and care taken not to deform the bullets big hollow point . Seat then crimp in two seperate steps...this helps.
Pet load: This bullet, loaded as a standard wadcutter or reversed for a hollow point ( don't seat the hollow point all the way flush into the case, leave 1/4 inch or so sticking out). Over 3.5 grains of Bullseye will give you around 800 fps from 2 inch J frame. A popular load is 3.0 grains Bullseye for 700 fps. For wadcutter target load. These are standard pressure loads.
Gary