'reincarnated' recently wrote about "having a jar of Cole bullets", he had picked up at a gun show. The Cole Bullet was adopted in 1903 for the Krag, and carried over to the early .30-03 Rimless cartridge for the 1903 Springfield.

The Cole bullet lacked a cannelure, so Frankford Arsenal, (Philadelphia), put a cannelure at the base of the case neck to control bullet seating depth. With the rimless .30-03 round, this caused headspace issues. Eventually, the Cole Bullet was modified by tapering the base slightly. This allowed the elimination of the cannelure in the case neck.

It would be fun to load up about 20 rounds and see how the old 'Cole' bullet compares with a good present day 220 gr. load.

(L-R: Single cannelure 220 gr. adopted 1896, Triple cannelure 220 gr. adopted 1900, Cole cylindrical cupronickel jacket 220 gr. adopted 1903).

Those were old Hornady 220s meant for dangerous game.  The had a copper coated steel jacket.  I hope you saved a few in case a rhino or water buffalo ever escapes from the zoo.

...... and Giant Squirrels and well armed Bears!