As much as I love Hammer bullets, watch your stability with that bullet in a 1:9" twist. I've had the chance to shoot and test a larger variety of Hammer bullets than most folks, and in my experience, they really perform best when they're "over" stabilized. They'll shoot well on paper, but their penetration can be a little unpredictable after impact.
Just for a little background, they made the original 304gr HH in .338 for my 338 SnipeTac. It should have stabilized in a 1:8" twist, but it was barely making it even at over 3200 fps. There was a revised 303gr version with a slightly shorter boattail and less aggressive ogive which shot well on paper but struggled to give predictable terminal performance at low elevation. The same story goes for the 168gr .277 in a 1:7" twist.
I don't want to sound like I'm bad-mouthing Hammers since I currently load 14 different bullets from them and I've bought 32 different varieties, plus a few more that they've sent me to play with and test. It's just that Hammers earned their reputation for terminal performance based on high impact RPMs as a result of either fast twists or light weight bullets at ultra velocity.