My 45th edition Lyman (1970) has 190-gr. loads for .30-30 using jacketed bullets, but no loading information for .303 Savage. Apparently it was well on its way out even then.
The 43rd edition Lyman (1964) does have loading information for .303 Savage, but no loading information for 190-gr. bullets in the .30-30 section.
The following tactic probably isn't "best practice," so I'm not providing any charge data. Do something like this at your own risk.
When I cross compare them, 1970 .30-30 190-gr. data to 1964 .303 Savage 190-gr. data...
OK, the data is SIGNIFICANTLY different for the same powders, probably largely due to the fact that the Savage 99, even the early ones, were significantly stronger than the Winchester 94 action.
This does not appear to be the slam dunk that I thought it would be.
I did, however, discover that my Speer Reloading Manual No. 3 is signed by Ray and Vernon Speer.