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Factory Ammo
- Thread starter chase870
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@BriarPatch99 @Jester896 guys more knowledgeable than me will be here shortly.
Mars
Senior Member
I'm going to say a poor heat treat on the brass but others here will along with the right explanation.
transfixer
Senior Member
kinda looks like there was a defect in the brass at the base to me, a weak spot, maybe thinner than it should have been ?
Over pressure in the chamber. Many things can cause this. Plus weak fast made brass.
Have u shot another shell not Hornady to see if the same effect happens.
Have u shot another shell not Hornady to see if the same effect happens.
chase870
Possum Sox
yes I have shot some of my hand loads and other rounds from the same lot number of the factory ammo as well
BriarPatch99
Senior Member
Have you had problems with other brands brass?
Just this batch of Hornady?
Just thus one brass or multiple brass?
Just guessing ...bad piece of brass ...if many pieces ...that batch may have been over work harden during processing... normally the bottom 2/3 of the brass is fairly "hard" ... so any defect would cause splits ...
It appears judging by the primer that those were not over loads ... the primer retains radius edges ... a really "over load" will cause the edges to be almost 90 degrees(S&B primers come flatter than most from factory) ...
Answers to the question can help ...
As far as I know they do not anneal the base after final forming ...never talked to Hornady engineers before ...so I am not sure of their process ...
Winchester says they annealed the brass "slug" to begain with ...and after each step until the final forming step ... Winchester say four impacts to form... three anneals ... no annealing after third step....
Just this batch of Hornady?
Just thus one brass or multiple brass?
Just guessing ...bad piece of brass ...if many pieces ...that batch may have been over work harden during processing... normally the bottom 2/3 of the brass is fairly "hard" ... so any defect would cause splits ...
It appears judging by the primer that those were not over loads ... the primer retains radius edges ... a really "over load" will cause the edges to be almost 90 degrees(S&B primers come flatter than most from factory) ...
Answers to the question can help ...
As far as I know they do not anneal the base after final forming ...never talked to Hornady engineers before ...so I am not sure of their process ...
Winchester says they annealed the brass "slug" to begain with ...and after each step until the final forming step ... Winchester say four impacts to form... three anneals ... no annealing after third step....
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chase870
Possum Sox
Yes I was just curious I've had a dud round of every brand of factory ammo I've ever shot. Most often its a bad primer, but every once and awhile it will be something else.
BriarPatch99
Senior Member
Another with similar case splits ? ..duds another deal ... I the question is ...is the chamber of your gun defective in that other brass splits ...if not ...I would say a defective brass if not...
Hornady may need to know. Lott number also.
chase870
Possum Sox
Chambers fine I've shot some other rounds after that, same lot and I shot some of my hand loads as well, the Jester load is dead on the money. All were hornady brass. Just that one round so far, but I have 9 cases of that lot number. I have never had a case issue other than a blown primer from a smidge to much powder, mistake on my part.
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Jester896
Senior Clown
I'm going to say bad brass too. Hard to tell if it started in the middle or at the case head. The area around the center looks like it sealed in the chamber then the crack went to the case head where there was no resistance.
hope you are OK
I might send them and image and lot number to see what they say
hope you are OK
I might send them and image and lot number to see what they say
HughW2
Senior Member
I had a piece or two of Federal Premium brass do this same sort of hairline cracking before. I sent their customer service a jpeg pic and they sent me a refund check.
bullgator
Senior Member
I’m going along with those that think it was just a defective piece of brass from the factory. It was probably to thin at that point on the inside where a visual inspection would have missed it. I would also guess it was an isolated occurrence and the rest are good to go.
Hornady would probably appreciate letting them know so they can connect the dots with any other similar failures.
Hornady would probably appreciate letting them know so they can connect the dots with any other similar failures.
bullgator
Senior Member
I’ve had Remington ammo crack up at the shoulder, but never that close to the base.
HughW2
Senior Member
Yep, the Federal cases cracked at the shoulder of the case.
rosewood
Senior Member
Is it possible there was some corrosion at that point near the webbing? I have seen cases do that that had a bit of green corrosion on it.
Rosewood
Rosewood
chase870
Possum Sox
If it had any it was on the inside of the case. I ended up with 8 cases of this ammo. It all has the same Lot #
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