AMP Aztec analyzing Question

[Richard Casey]

Do I analyze virgin or fired brass to get my code? Thanks.

 

[F Class John]

If you wet tumble it really doesn’t matter but if you dry tumble and leave carbon in, the numbers will slightly change but it’s rarely enough to make a real difference but I have seen a difference. Same thing if you turn necks. Always try to test brass in the same condition that you’d actually load it.

 

[piie]

If you wet tumble it really doesn’t matter but if you dry tumble and leave carbon in, the numbers will slightly change but it’s rarely enough to make a real difference but I have seen a difference. Same thing if you turn necks. Always try to test brass in the same condition that you’d actually load it.

F Class John -If I'm not mistaken, it was one of your videos where you did the whole analysis on the AMP and you actually used more than one piece of brass from a batch and used the average Aztec code?

Point being - if you're as stingy as I am with Lapua brass (thank goodness they always add that one extra in the box) - then most of us will only have one Aztec sample anyways - and I would postulate, that even if you are a bit off from the "real" Aztec value, you're still going to be in a better place than you ever will be with a flame... But yes, absolutely, Aztec the brass in the closest-to-fire-ready state you can get it.

 

[Retired Grunt]

I use Peterson brass, they have a spreadsheet on their website with Aztec Codes by Lot.

 

[Drolds72]

I use Peterson brass, they have a spreadsheet on their website with Aztec Codes by Lot.

Huh. never knew this. They had a 147 code for my 284 brass that is analyzed to 140 with necks turned down to .013.

 

[Retired Grunt]

Huh. never knew this. They had a 147 code for my 284 brass that is analyzed to 140 with necks turned down to .013.

Is the difference because you turned the necks?

 

[Drolds72]

Is the difference because you turned the necks?

Yes exactly. To John’s point, analyze them then in the same state you are going to shoot them

 

[Jennb]

I analyzed both. Fired brass had been annealed numerous times prior to getting the AMP. Expect fired and unfired to be different and turned necks also will be different.