Just got a reply from Winchester on StaBALL 6.5 via Email that says "This powder will be similar to H-4350".
Just waiting to see what other new powders come along and when there is a new powder burn rate chart published.
Hope that helped.
Similar in what way? We need more context.
Doesn't seem like much of a mystery to me when reading that. Similar in burn rate, load data, and temp insensitivity would be likely. What else could they possibly be talking about?
It is irrelevant what you think. What matters is the TRUTH.
