6.5 Grendel Primer Condition?

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6.5 Grendel Primer Condition?

Postby Stugotz on Fri Nov 19, 2021 12:56 pm

Looking for a little feedback on a few reloads I worked up for my 6.5 Grendel:
Attachments
thumbnail_IMG_0403.jpg
thumbnail_IMG_0404.jpg
Speed is Fine, Accuracy is final....but accurate hits at extremely high speed is final much faster.
I don't think you understand, these boys killed my dog!
Taking the gun off safe increases the velocity by 100%
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Stugotz
 
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Re: 6.5 Grendel Primer Condition?

Postby warrlac on Fri Nov 19, 2021 10:42 pm

Maybe I'm not particular enough about pressure signs, but those primers look okay to me.

I'll qualify my statement by saying that I load and shoot a lot of .308 and 50 BMG match ammunition. Some of my .308 cases show some flattening of the primers (worse than yours) after firing, and almost every one of my 50 cal cases has a primer that is significantly flatter than it was when I loaded it.

In the case of the 50 cal ammo, I've consulted with other shooters and there is a consensus that some amount of primer deformation should be expected, particularly when trying to accelerate an 800 grain solid to something like 2700 fps by the time it leaves the barrel...

If you were asking about something other than pressure signs, I'm afraid I didn't understand the question. Sorry.
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Re: 6.5 Grendel Primer Condition?

Postby Rowdy Roddy on Sun Nov 21, 2021 2:21 pm

They look fine. What did your chronograph say?
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Re: 6.5 Grendel Primer Condition?

Postby crbutler on Sun Nov 21, 2021 3:27 pm

I agree they look ok.

There are an accumulation of signs to say overpressure.

Your case heads and primers are 2 and both look acceptable.

Velocity, extraction, case expansion (at the case base area), and function are others.
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Re: 6.5 Grendel Primer Condition?

Postby Stugotz on Sun Nov 21, 2021 6:56 pm

Rowdy Roddy wrote:They look fine. What did your chronograph say?


Average velocity was 2,452 FPS
Speed is Fine, Accuracy is final....but accurate hits at extremely high speed is final much faster.
I don't think you understand, these boys killed my dog!
Taking the gun off safe increases the velocity by 100%
User avatar
Stugotz
 
Posts: 295 [View]
Joined: Sun Apr 07, 2013 10:22 am
Location: Twin Cities


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