6 Inch Build Giving Me Fits

[MeGrunt]

The chance that you'd be able to get the powder that Remington uses is very low.

Reloaders buy canister powder that is blended for lot to lot consistency.

Places like Remington use data powder. For each batch of powder they have to work up their own data. The batches have more variation than canister powder.

Remington could well use powder A at charge weight B for one run of ammo, then use powder Y and charge weight Z for the next batch.