I have found that some rifles can be real fussy about seating depth. Before giving up on the 40 and 50 grain V-Max try playing with seating depth. Load a bunch of rounds seated out as far as you can and take a press and c-clamp with you to the range. Clamp the press with the seating die to a bench then try shooting five shot groups then seat the next batch a little deeper and shoot again. You just might be surprised in your results.
