And I'm not too ashamed to write that I have no idea what "shot 4-2500 cards and 2-2450 cards" means.
Jeffrey, you are absolutely correct, there is no reason for shame.
A “CARD” is a sheet of cardboard 11” wide and 17” long.
Shooting one card is often called “A Match”.
On this card there are 25 numbered targets, along with sighter targets, advertisements and a place to identify the shooter and the score of the match.
On a “ARA Card” the center ring is equal to 100 points.
If the shot falls just out of the 100 ring the score is 50 points. We call this worst edge scoring.
If all the shots fall into the 100 ring the total score for that card is 2500, a perfect score.
If one shot falls into the 50 ring the total score for the card will be 2450, also a good score.
The 4 and the 2 are the number of cards that were shot.
Bob