How much, if any, benefit would I get if I have my factory ( Mark X 24"bbl) .270 rechambered to the .270 Sherman? Lets say I have no interest in heavier than Nosler 160PT too. I can already get close to 3000fps with 160/R26 and 150/R23, will I gain enough to off set the cost of custom loading dies? OR does it make more sense to just "rebarreling" to a 26" bbl with a faster twist? I'm just curious at this point...thanks. I need to stress the fact that I am not a LRH either, have shot a few head at 345-375yds. I usually just zero +2" @100 and "hold up" at 350+.