I was playing around with my Rem M-700 Titanium Mountain rifle on Sunday. I free floated the barrel a while back since it did not shoot so great out of the box.
I was shooting up some regular Winchester Power Points (silver box stuff) just to get the brass. The 150 grain stuff was actually pretty accurate, even though the velocity was jumping all over the place.
The first group is with cooling periods. The second group was with a hot barrel. Just an interesting experiment for folks thinking about buying a light-weight rifle.
By the way, the WW Power-Point 180 grain slugs had much better velocity tolerances, but they shoot a 1.5 inch group with cooling... Go figure..