My 300wm is a 1:10 and 26" tube, My hornady Manuel has load data for the 110 vmax in 300wm,it list speeds up to 3700,test barel was 1:10 25" tube. Now that itch is getting worse lol. If they won't work ill probably stick with nosler 165 bt's. This gun loves them. Catshooter please let me know how those shoot for you.