Hi mate,
Mine is still going up buddy, after 20 shots it went from 10ft/lb to 10.3.
I'll hopefully be putting a good 100 of so through over the weekend so I'll let you know. I would imagine it will go up another 2ft/lb by the end of 500 shots maybe less so yes, it will be going back, its just a question of when. All the SFS rifles I have owned or know of have had to go back after a month or so to have the power taken down. Once the rifles properly bedded in though it should not creep up much more.
Phil