I think I would go with either a T/C contender or a NEF single shot in 30/30. You stated that the shots would be in a wooded area and under 100 yds. Any factory load would work well to 200yds and if you handload you can use something like the Nosler 150 gr BT and extend the range just a little if needed. It will have low recoil and a larger diameter bullet than the .243. The T/C as stated above would allow you to change barrels to other cartridges when needed. The plus for the NEF is the lower initial cost.
Just my 2 cents worth.
BruceP
Just my 2 cents worth.
BruceP