This is the best shooting deer/antelope load in my 25.06 Ultra:
Winchester Brass, Winchester Large Rifle Primers, Sierra GameKing #1630 117 gr. boattail spitzer and 49 gr. IMR4350.
51 grs of 4350 is listed as max, but mine did better at 49...
My gun had a long jump to the lands, so I set the bullets out longer that spec for a magazine feed rifle, but I'd have to measure one to tell how long. It still had plenty of bearing surface to stabilize though. That really depends on the land distance in your gun anyway.
- perklo