Just checked Hodgdon's online data for the 264 Win and H1000. It shows 60.4gr with a 130gr bullet and 58.5gr with a 140gr. Both were roughly 62k psi.
In Pat's posts, he's showing 62-63gr with a 130gr bullet and 61.5gr with the 139 Scenar. Both are a few grains higher than the 264 load from Hodgdon.
I know... the bullets are different so we need to take this comparison with salt but unless the burn rate for H1000 is being changed somehow in the 6.5 SAUM, I don't see how a case with smaller water capacity (I think) with a heavier charge is getting higher velocities with 88% of the pressure
And minimal freebore?
I don't get it. Would love to see lab data for the 6.5 SAUM.
