Poobs, I chronied those Trail Boss loads today just for the heck of it.
7.7gr TB under 50 Z's was 1,800
7gr TB under 75 Amax was 1,450
Thanks for that info...my guess, as I have no chrono, was that the 50 grain loads were going 1900, so I wasn't far off.
Now Im shooting the 50s in front of Seafires 12.5 grains of IMR 4198 and I get the impression that they are a tad faster....
Again no chrono, so Im wallowing in ignorant bliss.