Originally Posted by txjohn
Try working 42.0grs. to 44.5grs of R-15 with a 168gr. Sierra MK you will hit the sweet spot some where in between. My Tikka T3 Varmint likes 44.5grs of R-15. Hope this helps.
Ive spent much time with the 168's. Hornady, sierra, and berger. Even pushing them hard i just cant get the energy and wind bucking potential of the heavier bullets. Since its getting close to time to re barrel i just as well figured id build a barrel in the direction ive been heading, which is toward the heavies.
If you wanna share youre load data, Mv, and opinion on temp sensitivity of the 168's with re 15, i would sure appreciate it.