Use the hard bullets for groove diameter PP or GG and not for the PP at bore or under diameters.
Bruce. When I was a Kid at around 15 maybe with the first .43 rolling block I didn't know anything about reloading. But I had a friend that owned a gun shop that took me under his wing. I guess because I drank his Spike special ( orange juice in a glass full of cream

This started when I was about 12 years old. I used to peddle my bike to town with my single shot .22 Winchester over the handle bars on the weekends to buy a 16 cent box of .22 shorts. to shoot with Spike. Spike was to me a very old Man that talked a lot of his grandpa being a Army scout and buffalo hunter. He said I rode on his wagon when I was very small and the stink of those hides was bad. I never knew his real name.
Well he would just scoop the case in a bowl of powder and seat the bullet. No wad. Well I did this for a while but I started to use less powder because that 43 Spanish was hurting my about 80 pound frame so I short loaded the cases using screened out blasting powder that the Farmer I worked for during the summer had in the shed. Well to cut this short, Short loading that case started to get hard extractions were I needed a rod to get the case out of the chamber from the bulge that developed. I have not done this since. I do load rounds with out using a wad sometimes but the bullet base is always in contact with the powder.
Spike got me started loading with the old Lyman tools and I still use the 310 some times