To go that low you pretty much need a Rifle Basix SAV2 or a Savage target trigger(with the target sear also).

The Timneys and SAV1’s you can get close to 14oz but probably not less.
I have a couple SAV1’s and run them at 18oz with no issues.
I also have a SAV2 and run it at 12oz with no issues. It will go all the way down to about 4oz, although setting it can get finicky when that light and could cause sear trips which can cause accidental firing.
My target accutrigger is set at 10oz and has no issues, and no chance of accidental fire with the blade in there.