Well my New old .338 Lapua is gone,have no idea what was wrong with it ,after doing some serious reading there is not a hill of beans difference from a 24 to 30 " barel when it comes to velocity. I even took the break off to see if it made a difference,nope!! Just one hell of a increase in jet recoil.its gone. Now some might question my sanity but I traded it for a Savage 110 Precision with 24" and a break. My question is this its 5# lighter which is a blessing but,would you leave the factory break on or put my EC Tuner from the old, Pete