Originally posted by Sport Fulton:
Howdy
Over the last 4 months, I've been working with two 338-06's. One 03A3 rebore and one with a Pac Nor SS barrel on a M70 action-both 24 inch barrels.
I've tried IMR 4350, IMR4320, IMR4064, RL15 and H4895. Hornady, Nosler, Speer, Old Winchester 250 Silvertips, Sierra, Barnes TSX have all been shot and chronographed - bullet weights from 185TSX to 270 Speer.
In both rifles best velocity and accuracy has been with IMR4064. 2750fps with 200 and 210 bullets with easy extraction, good primer appearance and tight pockets after at least 5 reloads - used Win 30-06 brass necked up using Redding dies. 55-57 grains of IMR4064 with 210 Partition gives excellent accuracy.
Many of the loads I tried came from this web site which is very good - but as always start low and work up in your rifle.
http://www.reloadersnest.com/frontpage.asp?CaliberID=70Adios
Sport