Pellets/Slugs that will hurt the most out of a .25 Eagle Claw?

I'm looking for tried and true recommendations for pellets/slugs that will shoot straight and hold power under 100 yards.

This long eagle claw is tuned by Will P. This is new to me so I haven't shot it at all yet since I'm tight on time and short on cash due to some family matters sadly.

This rifle will only be used for hunting so accuracy and power are priority.

It has shot(from previous owner): Past owner says it liked the AVS 50 grain in .254 and 30 grains

Pellets:

43.2 g @ 903 79 FPE
34 g @ 957 69 FPE
Kings 33.95 @ 954 68 FPE


Thank you all for what y'all do for this community
 
hurt huh .. if you hit something its gonna hurt it lol .. my appraoch would be the 50's if its under 50y like for giant mutated jackrabbits, and maybe the 34kings for longer range like prarie doggin .. i like a flat shooting gun, i dont want to have to aim at the clouds with a heavy load to hit something way out there .. more energy means nothing if you cant hit it lol ..