Consistency between kegs is going to be absolutely nonexistent. Pulled powders may come from mixed lots, mixed calibers, any number of variables.
It's great powder to plink with, but don't enter any matches with surplus unless you're shooting it all from the same keg.
You can get WC844 for really cheap these days. It comes from mil 223 pull downs. WC844 is comparable to H335 in load data and pressures.
Of COURSE.... work up your load data, don't max it and work backwards.
Educate please: what's the definition of the term "pull downs". This is the second time I've seen it tonight and I don't know what it means....
It's powder (also applies to bullets and sometimes cases) that comes from surplus military ammunition that has been disassembled. Our government can't/won't sell current surplus ammo. But they can/will sell to contractors who disassemble and re-sell the components.