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#6491690 - 10/11/16 11:29 PM Same load different brass
Sirrah243 Offline
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Registered: 11/05/09
Posts: 1831
Loc: Llano County TX
I use Remington brass when I develope hunting loads for my bolt rifles. I use Remington brass for the loads that I've developed when I hunt. I have an assortment of brass from different companies, FC, Winchester, Hornaday, Lake City. Sometimes I load FC and Win brass with the load I developed in the RP brass for practice loads. I see no difference in accuracy and no signs of over pressure. So why is it said that you should start from scratch and develope a load for each specific brand of brass?


Edited by Sirrah243 (10/11/16 11:31 PM)
Edit Reason: Typo O
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#6491720 - 10/12/16 02:00 AM Re: Same load different brass [Re: Sirrah243]
parkj5 Offline
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Registered: 09/05/04
Posts: 119
Loc: Bentley La..
Neck length, case capacity and several other issues when loading close to max or compressed loads with different brass. Some are thicker than others is the reason one piece of brass may hold more than others.. If you are not close to max case capacity you should be fine. I have saw no issues with mixing brands specially on hunting rounds if you are not close to max ..
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#6491768 - 10/12/16 06:39 AM Re: Same load different brass [Re: Sirrah243]
Bbear Offline
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Registered: 11/24/13
Posts: 596
Loc: West Texas
A good example of what parkj5 is talking about is in the 308 cartridge. Using Lake City brass, my load is too hot in it. I have hard bolt lift and pressure signs. Put the same powder charge, primer and bullet in a Lapua case and everything is just fine.
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#6491841 - 10/12/16 07:38 AM Re: Same load different brass [Re: Sirrah243]
Creedmoor Online   content
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Registered: 09/12/16
Posts: 616
Loc: Soon to be Hudson Oaks
FWIW, anytime I change any component in the recipe I always back up a bit and reconstruct the load.

Overcautious? Maybe. But that's just me.

I'm a very careful reloader especially because my son is using my reloads also. That injects a bit more caution on my part.
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#6491988 - 10/12/16 08:49 AM Re: Same load different brass [Re: Sirrah243]
redchevy Offline
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Registered: 10/25/04
Posts: 23348
Loc: Texas
All depends. If your are pushing the envelope at or above a max book load then yes I would back down.

I load several different loads that either for accuracy or recoil etc are mid range loads. On the mid range loads I will just load with the new component same charge and check for accuracy.
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#6492032 - 10/12/16 09:22 AM Re: Same load different brass [Re: Sirrah243]
Sirrah243 Offline
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Registered: 11/05/09
Posts: 1831
Loc: Llano County TX
I load to the upper end in most cases because that's where I find the combination of accuracy and velocity that I want in my hunting rounds but never max.

I have not tried the LC brass yet. I hear they are quite abit thicker so if the case looks fuller that with RP I'll back it down.

Thanks for the input guys.
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#6492297 - 10/12/16 11:53 AM Re: Same load different brass [Re: Sirrah243]
Creedmoor Online   content
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Registered: 09/12/16
Posts: 616
Loc: Soon to be Hudson Oaks
Originally Posted By: Sirrah243
....... so if the case looks fuller that with RP I'll back it down.


I wouldn't depend on it "looking fuller" to judge whether it's over pressure or not.
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#6492360 - 10/12/16 12:38 PM Re: Same load different brass [Re: Sirrah243]
postoak Offline
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Registered: 08/19/09
Posts: 2528
Loc: The Woodlands, Tx
Instead of going by looks, load the case with powder to the base of the neck for each brand and then weigh the amount of powder each one took. This will give you a more accurate gauge of case size difference.
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#6492547 - 10/12/16 02:20 PM Re: Same load different brass [Re: postoak]
Sirrah243 Offline
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Registered: 11/05/09
Posts: 1831
Loc: Llano County TX
Originally Posted By: postoak
Instead of going by looks, load the case with powder to the base of the neck for each brand and then weigh the amount of powder each one took. This will give you a more accurate gauge of case size difference.
Excellent idea!
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#6493235 - 10/12/16 09:59 PM Re: Same load different brass [Re: Sirrah243]
scottfromdallas Online   content
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Registered: 06/23/15
Posts: 349
Loc: TX
If you have a max load with 308 brass you always want to back off a few grains when using military 7.62x51 NATO. The brass is thicker and it has less internal capacity.
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#6493289 - 10/12/16 10:31 PM Re: Same load different brass [Re: Sirrah243]
Sirrah243 Offline
Pro Tracker

Registered: 11/05/09
Posts: 1831
Loc: Llano County TX
Is there an advantage to using military brass for a bolt rifle? Less stretch? It lasts longer?
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#6493402 - 10/13/16 06:20 AM Re: Same load different brass [Re: Sirrah243]
Creedmoor Online   content
Tracker

Registered: 09/12/16
Posts: 616
Loc: Soon to be Hudson Oaks
No advantage in my opinion. Unless you are loading extremely hot, or overworking the brass with the resizing die, quality civilian brass will last a long time.
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#6493492 - 10/13/16 07:58 AM Re: Same load different brass [Re: Sirrah243]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 9393
Loc: Lewisville, TX
Originally Posted By: Sirrah243
Originally Posted By: postoak
Instead of going by looks, load the case with powder to the base of the neck for each brand and then weigh the amount of powder each one took. This will give you a more accurate gauge of case size difference.
Excellent idea!


The easier method is measuring the water capacity. Fill a few cases up with water, and weigh the water. Powder can settle or pack differently when loaded in a case, and would allow for some variance.
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#6493567 - 10/13/16 08:38 AM Re: Same load different brass [Re: Sirrah243]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Sirrah243,

I've had .308 and .22-250 shoot the same load the same way on Remington, Federal, Winchester, and Hornady brass. But I would rework the load when switching to Lapua, Nosler, and especially any military brass such as Lake City.
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#6493589 - 10/13/16 08:55 AM Re: Same load different brass [Re: Sirrah243]
Creedmoor Online   content
Tracker

Registered: 09/12/16
Posts: 616
Loc: Soon to be Hudson Oaks
Chad gave great advice. If you aren't certain how to do it, here's a video explaining the process. It isn't the best video I've seen, but it does give the proper info:

https://www.youtube.com/watch?v=NMEtfT-e0eg
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