What are the real world speeds (and loads) from the 270 Wby using 150-170 gr bullets? Thinking of making a fast twist 270 Wby in the next year, maybe a Benchmark 8.5 twist cut at 24-25" but no longer.
With mine with a 26 inch barrel, I loaded the following in these weights:
150gn Nosler Partition
69gn H 4350 for 3185fps
72gn H 4831 for 3195fps
70gn IMR 4831 for 3203fps
150gn Sierra BT
71gn Rel 19 for 3167fps
73gn Rel 22 for 3254fps
74gn WMR for 3253fps
71gn IMR 4831 for 3230fps
160gn Nosler Partition
72gn H 4831 for 3168fps
74gn Original Surplus H 4831 for 3184fps
Please drop a couple of grains and work up.
John
