SS tikka 308 with a Burris scope sounds like my kinda set up! Burris makes a great scope for the money! They seem to be a lil more crisp than my other budget blue collar scopes
I have had allot of luck with factory hornady ammo.
If you hand load try some Berger 155 lvd's with either ar comp or varget powder at book max. All my 308's like hot loads. Every time I have ever worked up a 308 load they tighten up the hotter they get! Maybe my shooting just gets sharper! Either way I like the idea of pushing a 155 at 2800fps in a short action