ORIGINAL: Riffer
Does anyone know if changing your ammo, you would have to sight it in to the ammo? thats what my dad said but i dont know if he's just saying that because he doesnt want to change (he wants us both using the same ammo and i want to change from 130 grains to 150)
Listen to dad as he has right. Anytime you change be it brand, grains size and even lot# of the same load can have changes in you POI. The only way is to test it and make changes if applicable.