@BeerSleeper. You are absolutely correct. That was an oversight on my part. I have stuck my nose out a couple times in this thread to have it cut off. I am not afraid to admit it. I just have to pick it back up, put it back on, and keep going. I called Hodgdon to get a definite answer for Barlog in effort to keep the thread on target.
Barlog, that is what the tech was saying on the phone to me, and I stated that in my post. The only worry was contamination. Not burn rates, etc. They said that if you mixed them good from different lots you would still be within' the tolerance of the burn rate for that rated powder.
I am trying to work with you, and help you out. I am not working against you. I hope you understand that. I know some came across as rash, and it probably was, but taking the "High Road" I wanted to help you, and learn something myself.
The tech I spoke with "Mike". You can call now, and probably get him, or ask if someone named Jeremy called about this question, and maybe you will get the same answer. I would not post anything that would put anyone in danger. I was quoting the Hodgdon CS guy pretty much word for word. Unless the powder is contaminated. I am guessing blended with another powder from a hopper that was not cleaned, maybe left open for a long time, or any other way you can contaminate something. You are okay to blend the powder per Hodgdon CS. Please call them now and ask them.
But as far as the response you got about not mixing them because it would ruin the other goes with along the lines of my statement of not knowing which lot or what caused contamination or failure. Except we know that a failure would not occur because they are the same powder.
From what has been mentioned, and from what I have been told from Hodgdon. If both are shooting well you could mix and be fine. Although if I had 2 lbs of 296 on hand. I would just load the lot from those 2#s, and be done with it if they are the same powder, and then load up another batch later with the H110. Then you don't have to worry about contamination, etc.