Years past I shot scads of IMR4350 and still shoot some. It was the first powder that brought the temperature issue to light for me.
Sometime ago I switched to H4350 and have not used much else in the 30/06 since then...and strictly with 165 gr bullets. Far as I can tell one is as accurate as the other.
Yes I get the same velocities with both powders; usually around 2900 fps with H4350.
A buddyy knocked off a bull elk in the San Juans in 30 degree temperatures at around 500 yards,after shooting his 30/06 all summer back here with a max load of IMR4350 in temps of 80-90 degrees.
Go figure.
