That article was in regards to the re-introduction of the 250 Savage cartridge in the model 99A in 1971, which was the first year for that model. In 1975 they added the 99CD model, and it was also available in 250-3000.

Last catalogued in a 99 in 1983. If they'd changed the twist rate back in the 1930's or 1940's before the 243 came out, I still think it'd be popular to this day.

My earlier 99s in 250-3000 have all loved H4895.

“The Savage 99 Pocket Reference”.
All models and variations of 1895’s, 1899’s and 99’s covered.
Also dates, checkering, engraving.. Find at www.savagelevers.com