almost all 308's shoot very well with 150 and 165 grain pills.
Thanks for the twist and length, those are pretty common, what is your barrel profile?
what is your intended purpose? with reloading you can find the sweet spot for either weight with your barrel by varying the charge a bit.
If you want to get REALLY technical, you can use the formula posted here: http://www.uslink.net/~tom1/twistrate.htm
I took the time to load it for your rifle, throwing out the length of barrel because for the most part it does not influence the twist to weight so much as it does to affect the velocity of the round which you can control with different powders.
In all cases with your barrel, you SHOULD be able to get a 150 grain pill running at 2700 fps. With your twist, the ideal bullet would be 1.725" long. good luck finding the bullet lengths posted for any of the available stuff out there without popping a box and putting the caliper on it.
That said, assuming you are hunting, and hunting deer so you need an expandable bullet, in PA so your max range would usually be less than 300 yards, a decent starting bullet would be the inexpensive Hornady 150gr SP's (model 3031) which is (you guessed it...) what I run in MY .308
I've tried bigger pills and my rifle (also 1 in 10) just wont' stabilize a 180 grain but i can make the 150's touch. I have yet to play with the 165's.