I will be sighting in the new Impact in the next couple of days! I'm going to start off with 90 gr of BH209 with a Traditions 250 gr sabot ( got a deal on em) Question is I am wanting to sight in ( Zero) gun at a yardage when i can pretty much hold dead on from muzzle to 150 yards! Ant experiences or knowledge on where to start? I will shoot gun at different ranges To check actual bullet drop before season comes in in Oct. ( antlerless) but wanting a good "ball park" to get started