I have heard that when opening a new bottle of powder to rework your load by starting 10% lower but 10% of the max is lower then the starting load listed.
I was loading up some 2 different bullets in .5 gr intervals of Varget & ran out of powder so I bought another bottle. While I don't know what the lot number is on this bottle they do have different numbers on them so I assume they are from different batches.
How much will this affect my test?
I did load 3 each for 2 of the same loads from the last batch of powder to see if they are the same.
I was loading up some 2 different bullets in .5 gr intervals of Varget & ran out of powder so I bought another bottle. While I don't know what the lot number is on this bottle they do have different numbers on them so I assume they are from different batches.
How much will this affect my test?
I did load 3 each for 2 of the same loads from the last batch of powder to see if they are the same.