also interested in this, American Rifleman article has chrono velocities for Fed. factory loads as:
-Nos. Part. 2486
-TSX 2409
-Barnes solid 2500
-Federal has since replaced the Nos. with a Swift AF
-these are all 286 gr. 24" barrel,Fed. listed at 2550 up to 140 fps low,so John is very close comparing it to top end reloads for the 62 or what you would likely get reloading the 66
