I use 12 - 15 kg of 2208 per year, usually buying 20 kg at a time.
Been fortunate had the same batch number for a couple of years until a new batch last year.
Last time the batches changed I prepared 12 cases of the "old" batch, 12 of the "new" batch.
Took them to a range. Shot batch 1, let the rifle cool, shot batch 2 (won't say which was old and which was new).
Statistically the speeds, extreme spread, and std deviation were near enough to identical.
The scores were, near enough, identical.
Thought about it. ADI probably make a lot of 2208, so much so that they should be able to get the same performance out of each batch.
That's my thoughts and my experience, yours may differ.
Bookmarks