IMO loads should be worked up for the temps normally expected for the time of year it will be used for regardless of powder being an extreme or not.
Case in point is that a load worked up with 8208XBR (which is supposed to be temp stable) at 50 degrees was causing hard bolt lift and fail to extract at 95 degrees. It was a max book load for 223. Have had that issue to some degree with max loads of benchmark.
335 is one powder that I will not approach max on a hot summer day at all. But then again I dont shoot 335 at any temp over 50 anymore either.
Last edited by Swifty52; 11/18/14.
