Daryl, 296 is the same as H110.
When I was doing load work-ups for Freedom Arms 454 Casulls back in the early 90s I saw the large barrels of H110 powder at their loading room. If you pealed off the label there was an Olin 296 label printed under it. They confirmed to me that it was the same powder and Hodedon just purchased it in lots from Olin. Same with the corporate office of Winchester.
Same stuff.
Like all powder it can vary a small amount from lot to lot, so you should not ever start with a hot load when you buy ANY new powder. Even if it's the same brand and number. Always assume that a hot load may be too hot with a different lot of the same power and load accordingly.