Very true. But .30-30 does not really lend itself to target rifles; its forte is reliably delivering a deer-appropriate bullet out to a couple hundred yards from a lightweight, compact, easy-to-carry rifle, which has made it a deer rifle par excellence.
But the low drag coefficient of the relatively short, blunt-nosed bullets makes it suboptimal for 300+ yard paper punching due to drag and wind drift, hence the rarity of target rifles in that caliber. .223/5.56mm has acquitted itself fairly well in 600-yard target competition even against such stalwarts as .308 Winchester and .30-06, although it is outclassed in that role by the heavier-bullet 6-7mm target calibers (.223 doesn’t have a lot of horsepower to work with, and OAL is too short for the highest-BC .224 bullets).