I had a .303 for a brief time but I have a 7,65x54mm that use the sme bullet. I also have many friends that hunt with the 7,65mm. We like the humble Remington corelock 180 gn and the Hornady 174 very much.
If you like heavier bullets Speer use to make a 200 grainer.
But 210 gn is the classic weight.
Hope this helps.
Martin