Originally Posted by SU35

I don't know why you would even think that?
I am using their load data.
There is no way I'm running too hot.


I blew a primer years ago and a really stiff bolt once load data for that was actually under a book max charge. Granted I'd substituted a different bullet of the same weight (a lesson in itself) but had worked up to it and shot groups with no problems at all. Whether some variable caused the extra pressure I don't know but things happen and hate to see you damage your firearm or yourself pushing too hard.

Originally Posted by SU35
Quote
140 GR. NOS PART Hodgdon Suprform .284" 3.230" 54.0 2905 55,400 PSI 57.0 2983 58,600 PSI


I would venture to say you could push that by an extra 3 grains and be at approx 62,000 psi and pusing 3,200 mv.


Possibly. Normally I'll cross ref. it with QL to give me an idea if I'm around max or slightly above, esp in the 280, and chrony as I work it up. I hate to push things too much myself, maybe I'm just overly cautious, esp with me not being able to at least get a ball park in QL what it may be doing.