Not sure if this helps. The Lyman 50th version reloading manual does have information for two cast bullets. The information is given for reduced velocity loads; seemingly under the assumption lead bullets are practice only sort of loads.
You don't state for what purpose you desire lead bullet 'full charge' loads but one would expect those (lighter) cast bullet loads would do for Mr. Deer.
If all fails, one must keep in mind that generally, lead bullets do a better job of sealing the bore, allowing less propellant gases to escape, thereby giving greater internal pressures. However, the propellent quantity is based essentially on bullet weight. So the starting loads and lower end loads for jacketed bullets will be close to the same.
I caution against the maximum loads - pressure difference - and likely an increase in leading.
As always, start low and work up. Also as often stated, your firearm is individual and all rifles require attention to specific conditions. No guarantees.
