Quote Originally Posted by olddav View Post
Just a quick word of warning. If you are seeing preasure signs (much less "massive signs") stop. At that point what the book says is secondary to the reality of what your rifle is telling you.
+1

Book data is a general guideline and isn't carved in stone. Powder burn rate varies from lot to lot, they don't tell you what brass or primers they used, they might have had a barrel with a slightly tighter or looser bore than yours, they don't say whether they were using a FB or BT bullet in their testing - lots of variables. Look at several different manuals and you will see the recommended max for a given powder and bullet can vary by a couple grains from book to book. Every gun is going to be a little different as well as olddav was eluding to above.