[TheStupid]

Does anybody know which powder is used in Blazer Brass .45 ammo sold in Walmart for $10/box?

It is CLEAN!!!! I want to reload with that powder or anybody can recommend me a equivalent?

On the contrary, the Winchester white box is dirty as hell!!!

[Car Knocker]

New commercial ammo usually uses canister powder that is not available to the public.

[Jim Watson]

Not necessarily, the plant might have had more cannister spec powder than they had orders for so they used something you could buy off the shelf; but how would you know?.
They use what is cheap and reasonably suitable. The reason it is clean is largely because it is in tight new brass with well seated primers.

[agd1953]

email CCI and ask them if the powder is a commercial powder that is on sale to the public and what is the name of it. Give them your reasons for asking and you may be surprised how much information they will give you.