Been shooting and developing the heck out of some handloads in my .264 Win Mag. I've never had a .270 Wby, but from what I hear, Weatherby/Norma actually load it to its potential. Factory Rem and Winchester is supposed to be nowhere close. I can get just under 3300 (more like 3275) with 140s, 3425 with 130 Accubonds, 3515 with 120 TTSXs, and 3800 with 100 gr Nosler Ballistic Tips. However, 140 grain factory Power Points shoot 3200 in my gun, which has 27.5" barrel.
The accuracy load was 7828 and 100 gr Ballistic Tips. Shot 1/3 inch. Then screwed the gun up by making a longer throat-gained 75-100 fps, but lost some accuracy. Gonna try again this weekend.
There's my girl:
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"For some unfortunates, poisoned by city sidewalks ... the horn of the hunter never winds at all" Robert Ruark, The Horn of the Hunter