ORIGINAL: rost495

You didn't use the Audette method but now is a good time to use part of it. Take the 3 tightest groups that are in order. Reload those and see what happens. Also compare impact area. IE 46,47,48 hopefully all the impacts will be the same. Then if thats the case I'd take the middle charge as you have the most leeway in powder charge area which means you are in a sweet spot in the harmonics of the barrel. Which also tends to give leeway in temp and other variations.

The absolute WORST thing you can do is shoot 46,47,48 and pick 47 because its a 0.2 inch group while 46 and 48 are 1.0 inch or worse groups. That means that you are in a fluke spot. Even if you can repeat the accuracy of 47 a few times, what happens when the variables of powder charge and ambient conditions change? You will be changing your MV which will in turn mess with the accuracy part of it.