This is kinda a two part question, so here she goes??? So far I have not shot this gun a whole lot, its a custom build, 26" Douglas barrel, 1-9 twist, jewell trigger, its a remington 700 ALD reciever, its setting in a Boyds thumbhole stock. For glass I have a sightron S3 6-24X50 with mil-dot reticle mounted on a nightforce 20moa rail and nightforce rings. Hoping to eventually replace the scope as I want something better in the glass department. I do reload and so far I have tried 140gr accubonds and they shot pretty good and then I tried 162gr A-Max bullets and out to 200 yards they shoot great, but I think they are just a tad heavy and trying to decide if I should go with the 154gr hornady SST's or back down to the 140gr accubonds??? Anyone care their opinions on those three bullets??? My next question is about powder, I know hodgdon has their extreme line of powders and have used H4831SC and H1000. I see lots of good results from either IMR 4350 or IMR 4831. Now how temp sensitive is IMR powders???? So there ya have it thats my two questions for the night. Thanks a bunch.