Bob,
I havn't had much luck with accuracy from 175's in my 7 mm barrels. I use to load 175 Sierra and Hornady for my brother's Savage 110 and it loved them. It didn't make sense to me because his rifle had a 1-10 twist, which proves you never know until you start shooting the loads.

When I was a youngster in my 30's there was an older gentlemen in camp that had a Rem 700 and he shot 175 grainers for everything from elk to antelope. He had it zeroed at some long distance like 500 or 600 yards and just aimed a few inches lower on the animal at everything closer. Another thing that didn't make much sense to me at the time, but he was used to it and it worked for him.