I have a new 300 win mag and can't decide if i should shorten from 26" to 24" or 22'"the can will add 7-8" I have 2 308 cut to 18" and love the portability but it does give up some fps for the longer shots, I want to use this 300 for where the 308 , 168g Amax leave off. i will be shooting the 178 amax through the 300 win mag. any guys have any 300 win mag with 22" or 24" barrel if so what are your hand loads. thx