What sling mount on a heavy precision rig?

[Jayph]

When my rifle is done Iam expecting a weight 17-18LBS what is the best sling attachment for a rifle this heavy? Flush cups on the side of the stock or traditional studs? What are you guys using?

 

[MagnumPeanut]

Flush cups and a 3 point tactical sling.

If you shoot off bags the regular studs don't ride them well.