That's pretty good stuff and your right, 3180 with that Swift is really a killer load. I actually like the expanded Swifts a little more than the ABs but both are really capable bullets.
I've tried 33 with the 175's and I'm still not sold they are gaining me anything over a load of H1000 running 50fps slower. My only need right now is getting a single jug of H1000 so I'm working with the same lot of powder. When I started with the MSM I had to buy 1lb'ers from where I could get them so a great load out of one jug turned mediocre from the next.
I've got another buddy that picked up a Simillion rechambered M70 off of here. He has yet to shoot it, but plans on running 7828 which seems like it should be just as good as H1000 or maybe better. I had plans of trying a bunch of stuff with mine but once I ran H1000 I sorta lost interest since it worked so well.
