If you have a good rifle load, it more than likely will work as well in the Striker. I shoot mostly 165’s in my Encore pistol.
The Striker would have different be better imho if it was offered as a single shot. Loaded up in the factory stock with glass it wasn’t far off of a rifle weight wise.
Owned a couple and have shot several, all of them had good to excellent accuracy.
I'm using my rifle loads in mine to start but I swapped barrels before I got real accurate loads dialed in. I tend to use Varget for 308 loads. I have two Striker's, three bolts, 6 barrels and 4 stocks plus some miscellaneous parts. Right now one is set up in 7mm-08 and the other has an Accurate Rifle systems chassis stock with a 6mmbr barrel and rear ELF trigger.
a 308 Striker, eh? My Pops had one that was a hoot with 125 noslers along with a few other mid-lightweight pills. Seems like he was running aa2460 to top charge weights. I know the 516 in 308 he had was very accurate; I could dump three in 1/4" at 100yds on a calm day multiple times in a row.