Usually, but not always, with any given bullet weight, if you have listed data for that particular weight, you can cross reference, and substitute another bullet of the same weight using that data.
The kicker is, some of the newer copper bullets like Barnes, the Hornady XTP, and some variations of cast. The issues with the jacketed or solid type are that the XTP has a harder core and jacket than other standard cup and core JHP's, and the Barnes, well being solid, these types will bump up the pressures due to their resisting the rifling a bit more than a standard C&C type bullet.
With the cast bullets, it all depends on the particular dimensions of the bullet. They can have a longer base on them, which when seated consumes more of the case than a similar weight jacketed, and therefore will raise pressures. Hardly any cast bullet will be as hard as a jacketed, and IF the shank, or base below the crimp groove, are close to or the same as what is found on a jacketed of similar weight the same STARTING LOAD DATA can usually be used to work up loads for them as well, depending on the BHN. If the bullet has a low BHN (6-10), velocities need to be kept low @ 1100fps or less, but most anything above a 12-14 BHN can usually be driven to mag velocities depending on the fit of the bullets to the particular bore of the firearm. Usually with standard weight for caliber cast bullets this is the case, however with some of the now popular copper plated bullets, even if the hardness is there, they should not be pushed much if any over around 1100fps due to the copper plating being stripped off the lead.
The last thing would be that faster powders jump up pressures more quickly and can in some cases ruin an otherwise good load or worse, where the mid ranged and slower powders might not be quite a clean burning, but they are MUCH more forgiving when working with a new load. The exception would be H-110/296 where the reducing loads are not recommended.
