efw,
Out of curiosity, what's the accuracy difference between 49 and 52 grains?
John that's a good question I usually am not so far back from max and had to check my notes. Turns out I didn't even test that high; I think it's because of the RS published max of 49.1 w/ TTSX (which I know has different pressure characteristics than NBT), my use of heavier brass & hotter primer? Honestly I don't remember what got me there; may well have been before Nosler put all their load data on the web for free?
Anyway I'll be leaving it because it's so accurate and I don't like to push NBTs at warp speeds like I do TTSXs.