i did an 06 Gibbs for a while, 25" barrel and 190 hornady boattail was my go to load,, killed very well and easily sub moa at a little over 2900 fps, i really like the 190 hornady, has always shot as fast as any 180 but seemed like it killed better and shot flatter, shot many hundreds of them in my 300stw's,
i understand the wildcat urge, after the gibbs i went to 376 steyr case on 98 mauser action,, that cased necked to 8mm shooting 200 accubonds proved a great killer, feed extremely well,and a all up rifle at 8lbs with 24" barrel,,, kinda hard on the forehead and bridge of my nose,,,,