I've tried the 167 Scenar's in two of my Savage .308s but not the 155s.
By the way, I believe that Savage only makes .308 barrels in 1:10 twist.
Both of my Savage .308s and my son's Savage .308 and two of my shooting buddies Savage .308s are all 1:10 twists.
That said, one of my .308s, with 1308 measured groups, likes heavy bullets 168 to 200 grains, Trying to make 155s shoot great in that rifle I shot 193 groups, including 150 SMKs # 2190 & Berger FB targets, 155 SMK #2155, 155 TMK 7755, 155 Nosler CC and even 155 SMK Palma #2156. I finally gave up and had to accept that it didn't like to shoot the lighter bullets.
In my other .308, out of 1206 groups measured, I've shot all of the above as well as 155 Berger Target and 155.5 Berger Full Bore for a total of 347 groups.
It shoots the 150 and 155 grain bullets better than the 168 or 175 equivalent bullet from each manufacturer.
That doesn't mean that it shoots every 150 and 155 better than any other weight.
My most accurate 155 grain bullet in both rifles is the 155 TMK #7755 but the difference in average group size between the rifle that likes light bullets and the rifle that likes heavy bullet is over 0.1 inches.
In the rifle that likes heavier bullets there are a lot of heavier bullets that are ahead of the best 155, but in the light bullet shooting rifle, the 155 TMK is first on the list.
I have no doubt that the light shooting rifle would also shoot 155 Scenars pretty well, but I just can't say how it might rank among all the other 155s that I have tried.
So, first you have to determine if your rifle shoots any 150/155 grain bullets really well.
If yes, you have a good chance of having success.
If no, then save your money unless you just like to try new stuff and prove it doesn't work.
If you don't already have enough data to let you make a decision, you'll never know until you try.
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