Originally Posted by
Ridge Runner
at what muzzle velocity? velocity also plays a roll in bullet stabilization
an 8 twist at 2300 fps will spin a bullet 207,000 rpm's
a 10 twist at 2800 will do 201,600 rpm's
a 12 twist at 3350 fps will do 201,000 rpm's
so if a 308 will stabilize a 230 gr at a max load, then a 300 rum will do it with a 12 twist and a 300 wsm will do it with a 10, do any makers give you a velocity window for these reccomended twists?
RR
No velocities are given by Shilen, Pac-Nor or Hart. But it's safe to say that if your 308win is 1:12 and it can't can't push a 220gr bullet fast enough to stabilize it unlike the magnums. But, IMO if your trying to shoot that heavy of a bullet you may want to get a magnum. I must admit that i like the 1:10 twist for it's wider range of bullet weight choices, unless it's for a single purpose rifle. But think it's often being forgotten the faster twist's lose the ablility to shoot the lighter varmint bullets. Which my short mag is 1:12 and shoots 110gr V-max @ 3775fps (chrony'd) almost as well as my 165gr match. But if were 1:10 would it shoot the 110's as good, idk.