For those who cast for the ar15 platform what have y'all found to be a good starting place as far a BHN goes ? I picked up some sketch pencils and tried testing some boolits I cast with wheel weight ingots I made and seems like there a 13-14 BHN and from my reading if I water drop them that can increase a couple so possibly a 16 after water dropping.
So since I have to run higher pressures to get the action to cycle would 16 BHN gas checked with powder coat be a good place to start or should I try somthing of a higher hardness ?
Thanks !