Thread: .270 - 150gr projectiles

Originally Posted by Beavis

Hi members

Interested to hear your experiences with this weight in .270. I have tried SST's in my sako and found them to have outstanding accuracy. Muzzle Velocity is pretty glacial for a .270, at around 2600fps, at book max with 2209. I will be trying it over book max, as I am getting zero pressure signs on a hot sunny day.

Interested in MV and accuracy with powders.

Thanks

Getting 2950fps out of a 22"(Wby Mk5 Ultralight, kicks like a mule!) and 3000fps out of a 24"(Sako Finnbear, nice to shoot) with the 150SST, tight grouping and good clean killer up close and out far, 55gn 2209 in both.

Dunno about ADI's book max (49gn), no case head expansion, no primer pocket stretch, no excessive cratering in the primer, no stamping, extraction is slick - without a strain gauge you never can tell, but.......

ADI2217 or IMR7828 with a mag primer gets then going fast too.