I have been playing with some 30-06 loads recently and noticed that every load I try with RL 17 or Hunter shoots two touching and one "flyer", but usually within an inch. However, any load I try with RL26 shoots into an equilateral triangle. I saw this both with multiple 180 AB loads and 190 ABLR loads.
I have heard to seat bullet deeper if you get two tight and a flyer, and seat longer, but the pattern above came from same seating depths; just different powders and different chargers.
