the sonic is an outstanding head it is the only 3 blade true cut on impact broadhead and it has out scored any other broadhead out there in testing including mine. i shoot into in 1 x4 wood which it penetrated completely and no problems and still very sharp. then i shot it thru the 55 gallon steel drum and penetrated both sides no damage at all and then shot it thru it the 2nd time with the same results. i haven't tried the liberty yet but i plan on it if you can find 5spots site and or you can got he archerytalk.com he has a summary on the liberty which i want to use on my crossbow. it is also built as is the sonic head with the ferrelle being aluminum instead of steel like the sonic
if you want a bullet hole thru your critters like the ad says go shoot the sonic or liberty. either one will make you smile pard and do the best job you can find. i shoot a 308 in my encore and if the sonics and liberty can do it like when i tested them i am going to use them myself
rob k