in short you are going to lose some velocity, which in turn, will change the POI,. if your just building a bush type gun it wont amount to squat.
Just for curiosity maybe put it through a chrony before and after.
on my two 257mag weatherbys with one having a 26" and the other was 24" shooting the same handloads. with the two inches differance it lost 100fps. (26"/3650fps and 24"/3550fps).
my other extreme is my 77 ruger frontier with a 16" bbl in 300short mag, ive not ran it through a chrono, but stats say it is equal to a 3006.
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