degreen
Well-Known Member
I asked the same question only mine was on a factory Savage. I am getting just over 100 fps over what the reloading manual states.
You're no fun, leave us hanging!Its in the geometry of the lands/grooves. Thats all I will say about it...
I don't think that cut barrels have much to do with velocity, may be the manufacturer. I have a 30-06 shilen 25" barrel and 150 speer btsp bullet over 61gr. of h4350 is running 3184 fps. This load work up was online using imr reloading data.I have 3 brux barrels, I'm not sure why, but all three run a little faster than I thought they would. I'm guessing bore finish has something to do with it. Brux and Bartlein have been my favorites. I prefer cut barrels for no other reason than my limited background in metallurgy leads me to believe this is a better system. Maybe it has something to do with it.
My cut barrels seem to run a little faster than my buttons, but this is purely speculation, I have no idea if the process has anything to do with the speed.
All three shoot really good, as do all of my custom barrels, but I do have a couple barrels that seem really slow. As J E said, it could be a number of things.
At least the thread is only 4 years old this time ;-)