I have an Okuma LB3000MYW that I can squeeze 19" of travel out of and I'd like to start fluting barrels on it. However, best I can tell, a 26" finished barrel uses about 20.5" inches of length for fluting and, since 26" is pretty standard, I may be out of luck on that machine. I guess my question is, on average, how much length between breech end and flutes is unfluted and how much length from crown to flutes is unfluted?