Unique,
Keep in mind that it is close to the max in a SAAMI standard pressure and velocity test barrel which has a chamber and headspace machined to SAAMI minimum within half a thousandth of an inch. Unless your chamber and its headspace are that tight, pressure will be a little lower in yours. Also, the way Hodgdon and most reload data sources develop loads, they actually run the charges a little smaller than a commercial loader using the same powder would do by not letting their worst case high-pressure round in the testing exceed the SAAMI Maximum Average Pressure (MAP) value. In other words, they treat the SAAMI MAP as a hard limit. A SAAMI compliant manufacturer will use that MAP number as it was intended, which is as an average peak pressure value for ten rounds, not as a maximum. There is a bit more complexity in the SAAMI system than that, and I am not recommending you go over the book because of the variation in lot-to-lot powder burn rates. I am just pointing out you are probably at perfectly acceptable levels with either load data source and there may even be more headroom with your particular lot of powder. But it takes pressure measuring gear to tell. A different data source may allow a little more powder just because they bought a different powder lot for their testing than the other source did, and theirs happened to have a little bit lower burn rate.
If you have a chronograph, it is possible to use QuickLOAD or GRT to make estimates of how much further up you can go with your particular lot of powder.