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#7011172 - 12/25/17 01:11 PM mixing two same lot # boxes of brass
TackDriver Online   content
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Registered: 05/02/14
Posts: 922

I just got two 50 piece Nosler brass boxes of the same lot, would it be ok to throw two of those boxes together for a 100 piece batch?

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#7011177 - 12/25/17 01:22 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
FiremanJG Offline
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Registered: 12/16/08
Posts: 26354
Loc: Wolfe City, TX
I don't even look at brass lot number.

Brass prep, primer quality, powder charge consistency, and bullet relation to the lands tuning is far more important.
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#7011178 - 12/25/17 01:23 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
dee Offline
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Registered: 04/10/10
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Loads on the brass and annealing cycle is more important than lot number.
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#7011185 - 12/25/17 01:36 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
TackDriver Online   content
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Registered: 05/02/14
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Thanks FM and dee, its all I need to know. up

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#7011191 - 12/25/17 01:46 PM Re: mixing two same lot # boxes of brass [Re: dee]
FiremanJG Offline
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Originally Posted By: dee
Loads on the brass and annealing cycle is more important


Yup.

I've got 200 pieces of 7 Rem Mag with two firings, and has been cleaned. A partial box of 50 more are in the truck. Once that box gets fired, it'll need cleaning, and every piece will get annealed, sized, trimmed. Then I'll have all the brass the same as it needs to be.

Only problem is, once this last box gets fired I am smooth out of loaded ammo for that rifle, I'll have to get to work to get it shooting again.
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#7011218 - 12/25/17 02:42 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
Smokey Bear Offline
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Registered: 05/11/17
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Loc: Texas
Last 200 pieces of nosler brass I bought was all + or- 0.5 gr. It comes weigh sorted. Others opinions may vary but part of what you paid for is weigh sorted brass with nosler. I would weigh a few out of each box to see how close they are before I decided to mix it or not. It just depends on whether you think it makes a difference or not.
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#7011226 - 12/25/17 02:57 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
RiverRider Offline
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Registered: 11/11/07
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Loc: Wise Co.
I agree. May as well try to preserve the value of what you've bought.
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#7012062 - 12/26/17 12:13 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
ChadTRG42 Offline
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Registered: 09/16/09
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99% of the time it should be fine, but sometimes different lot numbers of brass weigh different. We have had some lots of 28 Nosler brass be heavier/lighter. It was enough to alter the load by .5 grain. The heavier brass generally has less internal case volume, giving you more pressure, and effecting the load. So, it can matter.

When it comes to my high precision, long range ammo, like for my 7mm/300 Win Mag, I do weigh the cases and sort them.
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#7012126 - 12/26/17 01:00 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
TackDriver Online   content
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Registered: 05/02/14
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When I get a chance, I'll weigh them all and sort them.

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#7012332 - 12/26/17 03:46 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
garyrapp55 Offline
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Registered: 12/26/11
Posts: 1029
Loc: Ft. Worth
I am not looking to stir the pot or raise a stink as I'm not a professional loader. I'm rather bringing to light something related to this subject I just recently read and think might be of good taste in this thread. It appears to me that case weight may be less important than case capacity. Obviously they may be related but weight may not directly affect the other. I can only imagine that weighing them is much easier and less time consuming than measuring capacity. I have never sorted by capacity. What say those with more experience?

https://aprifles.com/blogs/thoughts-from-the-ranch/16711779-all-about-that-brass

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#7012342 - 12/26/17 03:50 PM Re: mixing two same lot # boxes of brass [Re: ChadTRG42]
Big Fitz Offline
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Registered: 12/06/09
Posts: 2495
Loc: Prosper, TX
Originally Posted By: ChadTRG42
99% of the time it should be fine, but sometimes different lot numbers of brass weigh different. We have had some lots of 28 Nosler brass be heavier/lighter. It was enough to alter the load by .5 grain. The heavier brass generally has less internal case volume, giving you more pressure, and effecting the load. So, it can matter.

When it comes to my high precision, long range ammo, like for my 7mm/300 Win Mag, I do weigh the cases and sort them.


Chad, once you do your sorting, do you alter the charge for differing weights of brass? How much adjustment would you do on a 6.5 Creed?
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#7012365 - 12/26/17 04:04 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
Judd Offline


Registered: 01/22/09
Posts: 12141
Loc: Wylie, TX
Don't waste your time. They are the same lot, that is the entire purpose of having lot numbers.
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#7012432 - 12/26/17 04:50 PM Re: mixing two same lot # boxes of brass [Re: TackDriver]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 13727
Loc: Lewisville, TX
Some of the brass we have seen has been 12-20 grain heavier/lighter. And yes, we had to alter the powder charge for the case weights.
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#7012436 - 12/26/17 04:52 PM Re: mixing two same lot # boxes of brass [Re: Judd]
RiverRider Offline
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Registered: 11/11/07
Posts: 8223
Loc: Wise Co.
Originally Posted By: Judd
Don't waste your time. They are the same lot, that is the entire purpose of having lot numbers.



I think that would depend on whether lot numbers are assigned before, or AFTER weight sorting. Do you know anything about this, Chad?
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I'm here to give and receive knowledge, not affirmation or adoration. If you don't like it, mierda dura. Intellectual honesty is not for fragile egos.

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#7012715 - 12/26/17 09:13 PM Re: mixing two same lot # boxes of brass [Re: ChadTRG42]
Judd Offline


Registered: 01/22/09
Posts: 12141
Loc: Wylie, TX
Originally Posted By: ChadTRG42
Some of the brass we have seen has been 12-20 grain heavier/lighter. And yes, we had to alter the powder charge for the case weights.


Within the same lot? If that's true you need to contact Nosler, that's [censored]. If it's two different loss then I could buy that but the OP is talking same lot.
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