I'm with BobinNH on the 7 Rem Mag. It may have some drawbacks but it's not a total loser. I've had a few of them. My current one has no problem getting 140's to 3300 with Rel22 or H4831sc and it's Rel25/160 Accubond load would probably average near 3000, I've never done the math. This is a factory 700 24" barrel.
The only drawback it really suffers from is lack of kool

"after the bullet leaves the barrel it doesn't care what headstamp was on the case"
"The 221 Fireball is what the Hornet could have been had it stayed in school"