Your Bull rifle looks about the same as his, except you stock has more figure to the wood. Winchester didn't really believe pretty had anything to do with target shooting! He never shared the data, but I would assume it would be a typical 180 grain 4350 load tailored to the rifle.

About 6 to 8 years ago I sold off several of my target 22's. One was a Clackamas Kimber Government Target model that I used a long tube Bushnell 3200 in 20x and another was an Anschutz 54 Prone rifle. I used a Unertl 15x 2" Varmint on. Both of these were great at shooting M&M's at 200-300 yards. There is nothing like a long tube scope on a gun properly set up for them!

Might I suggest a load for your 308: My 1000 yard load is 155 Sierra Palma, Fed 205M, Lapua Match 308 Brass (not Palma brass) and 29.0 grains (Compressed) Varget. COAL Is as long as the magazine allows, in the Savage 10 BAS and touching the lands In my Rem 700 (sold off because the Savage was so much better! I get around 3 to 4 inches at 1000 yards.

This load is from Hodgdon's yearly magazine. I didn't need to try any others!

Ivan