Wow i wasnt expecting alot of that.
Im not sure if any of them are worthless. I have several 22LR and 223s. They all have their roles.
I really like my 270, shot it out to 1200yds no problem holding Moa. Funny thing is, i have 3 223s, 2 270s, 2 30-06s, 2 30 carbines, 3 12ga, 1 6.8spc, 1 308, 1 22-250, 5 22LRs, 1 300wm, 2 7.62x39, 2 44mags, 2 40sw, and 2 38spl.
Each has a diff purpose and each a diff role.
Had a 25auto once and its the only gun i think ive ever sold for its lack of everything needed. Cant think of another worthless caliber.