You can't just sub the PT for the Hot-Cor...more bearing surface, so more pressure. Found that out myself.
I’m right there with you on that. The load information I borrowed was a load using information from several others who have used as much as 61.0+ grains of RL15 with a 250 partition in there Whelens. I’ve heard that the Hot Cor has a similar nose profile and hits relatively to the same POI as the partition. I know the partition will obturate more easily than others and will come up on pressure faster so I carefully used the data. If and when I make the switch to the partition I’ll work up to that load cautiously. I doubt there is much out there on this continent that will shrug off a 250 Hot Cor with that powder charge behind it.
