Originally Posted by stvnbrg
Normally I would agree however I have been using , with outstanding accuracy thus far, the Applied Ballistics app from Bryan litz which has inputs for those values and which have never been wrong before. Information on this is tough to find! One theory I found was less neck tension due to softer brass makes for lower pressure and reduced velocity. Thoughts?
Run the calc leave the pressure alone for the 1st drop table, run it again and change the pressure by a value 1.0 (1st 29.92, 2nd 28.92) and see what happens, it'll change your trajectory by 1/2moa at the distance you stated, same thing shows up on my shooter app as well. you can also just make up a drop table for the average and go with it, in theory that will keep you within 1/4 moa. that is in theory.
Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.