most accurate pellet design ?

Those Piranhas are in my "top 3 worst pellets ever tried". Straight Diabolo domes are probably, overall, the "best" in most guns but what's best in each individual's gun is what gives the most pinpoint accuracy. Can depend on gun's idiosyncrasies OR the shooter's. "The Best" type of questions are hard to answer. Too many variables (& contexts).
 
Thanks for all the reply's . Based off them I bought some domed 10.5 grain .177 Crossman pellets . I relize not the best brand , but they are the only domed pellets at the local store . I washed ,weighed , and lubed (with silicon spray) . Counted out 10 and gave them a shot , with much better results . Only 1 flyer , the rest on paper . That makes me fell better about ordering online some quality pellets . Thanks again !