The 6.5x55 is my choice should have had 1, 20 years ago.
I've had 243, 2506,308, and have a 7mm rem mag.
But the swede shoots flat hits hard and has little recoil.
If you hand load its better still as you can squeeze alot from the case and seat the bullets well out.
A great calibre as are the others but the swede does it all without the recoil.