Originally Posted by walter351
Try shooting a barnes bullet. My accuracy increased greatly once I started to play with barnes bullets.
Like Lefty said, I have been having some good luck with the 180's out of my 9.25" twist factory Sendero SF barrel. And barrel prefence has alot to do with it. You will just have to play around with different bullet brands, models, and weights to figure out what your barrel prefers.
For example, my rifle isn't a big fan of the 160 Sierra GameKings (1 MOA @ 100 yards), but I had to shoot them for years and years before I started reloading, because that was the best bullet offered in the Federal Premium line for the 7mmSTW (never liked Winchester or Rem ammo, from bad past experiences). Then Federal started producing STW ammo with the 160 Nosler Accubond bullets. I switched to those, because my groups increased substantially, going from 1 MOA with the Sierras to 1/2 MOA with the Accubonds. Both bullets were same weight, same powder, same brass, same brand, and loaded at the same factory. But my barrel preferred one over the other.
If your rifle is liking the 140's but not the 180's, try an intermediate pill, such as the Berger 168 VLD. Seems lately that my STW has been preferring them to the 180's, which is odd, how it shot so well before when it was cool outside with the same load of H1000, but now that it's hot outside, that group will shoot good, but inconsistantly. They claim H1000 to not be temp sensative, but in my recent experiences I've found it to be.
I'll have to do more testing before I can make a final conclusion, since 1 incident is more likely a fluke, than it is evidence towards a trend.