I just started working a load for my 300wsm using 200gr accubonds and h4350. Book max is 62.5grains for imr4350. Hodgdon website says 62gr for max with a 200gr bullet so I followed that. I first wanted to determine my rifles max load. I loaded a 60,60.5,61,61.5,62. The 60, 60.5 and 61gr loads all shot fine. Then I hit 61.5. I noticed a nice mark from the extractor on the case bottom and was told this is a sign of excess pressure so I did not fire the 62gr. Now what do I do?