Re: What have you found to be the best...Sako TRG22
Mine likes both 168 and 175 FGMMs, for 100 yrd Groups it tend to like the 168 better, and 175 for 500 and beyond...
I have yet shot any 155 out of the rifle yet, but usually Factory Barrel TRGs are not very picky about ammos especially for 300 yrds and closer.
Depends on what range you're using it for...Generally 175s are better suited for Long Range Work, and I was told the 155s actually perform better than 168s at 800 and below with some rifles too.
Buy a couple of Boxes of each (Same Batch Number If Possible of each), and test it out to about 500 Yrds if you have a range that far, typically at that distance your rifle will show you which one it likes best. For 100 I doubt it'll be that big of a difference with Factory Loads, maybe more difference with Hand Load Pills...