Has anyone got any load data using the hornady 140 gr super shock tip and IMR 4320 powder thats works pretty good in the H&R .270 ultra hunter.
rms270hr
i can't tell you how much i am impressed by the .270 as a non-magnum caliber. but, i'd load it for more of what it is worth.....and imr 4320 isn't the answer. yes, imr 4320 meters very, very well. i have used it with 165 gr' bullets in a .30-06. Very Accurate! but imr makes much better powders for a bullet as heavy (sectional density is high) as the 140 gr' SST in a .270 Win'
i'd recommend imr 4350, or maybe Hodgdon's 4350. they're a little faster than Hodgdon's 4831 which -- in its Original form, seemingly slower than today's H-4831 -- produced fantastic velocities for Jack O'Connor years ago.
imr 4350 will give you good load densities for accuracy, as well as good velocities.
take care,
ss'