Issues with factory nosler ammo.

andy10401 · Sep 13, 2024

Hey all

So recently out on a moose hunt. Time came to shoot the moose fired the shot. Cycled the bolt and the fresh round jammed in the chamber. At this point im scratching my head wondering what I did to cause said issue. after a little tinkering I was able to get the round out and when inspecting the spent case I noticed the primer had blown out. I do quite a bit of hand loading and never had this happen didn't really expect to see it from factory ammo. I have reached out to nosler working on sending the ammo back to them so they can test it. Curious anyone else have these kinda issues before with factory ammo.

Ammo is nosler expansion tip
Caliber 300 win 180gr

cohunt · Sep 13, 2024

Several over pressure signs on that case-- did you shoot this ammo to check it before your hunt?

KNOTFERSAIL · Sep 13, 2024

Definitely signs of pressure, but in my experience nosler brass is wayyy soft and lot of times shows false positives for pressure.

Blown primer isn't good though.

andy10401 · Sep 13, 2024

cohunt said:
Several over pressure signs on that case-- did you shoot this ammo to check it before your hunt?

Yes this this the ammo I used to sight in the rifle prior to the hunt.

andy10401 · Sep 13, 2024

KNOTFERSAIL said:
Definitely signs of pressure, but in my experience nosler brass is wayyy soft and lot of times shows false positives for pressure.

Blown primer isn't good though.

Yeah I really stopped using the nosler brass for my hand loads because I would get pressure signs early and I'm always one to err on the side caution.

Window · Sep 14, 2024

andy10401 said:
Hey all

So recently out on a moose hunt. Time came to shoot the moose fired the shot. Cycled the bolt and the fresh round jammed in the chamber. At this point im scratching my head wondering what I did to cause said issue. after a little tinkering I was able to get the round out and when inspecting the spent case I noticed the primer had blown out. I do quite a bit of hand loading and never had this happen didn't really expect to see it from factory ammo. I have reached out to nosler working on sending the ammo back to them so they can test it. Curious anyone else have these kinda issues before with factory ammo.

Ammo is nosler expansion tip
Caliber 300 win 180g

Any chance some sort of debris, water or excessive oil was in the chamber?

PNWdude67 · Sep 14, 2024

Window said:
Any chance some sort of debris, water or excessive oil was in the chamber?

Would be my first question as well. Was it a wet day?

Tiny Tim · Sep 14, 2024

Window said:
Any chance some sort of debris, water or excessive oil was in the chamber?

Great idea. Might cause the marks on the case head, but unsure of blown primer.

Rosebud · Sep 14, 2024

Out on moose hunt. Barrel obstruction is my Prime suspect as well. Especially sense you shot them before without issues.

SSG Graybush · Sep 14, 2024

andy10401 said:
Hey all

So recently out on a moose hunt. Time came to shoot the moose fired the shot. Cycled the bolt and the fresh round jammed in the chamber. At this point im scratching my head wondering what I did to cause said issue. after a little tinkering I was able to get the round out and when inspecting the spent case I noticed the primer had blown out. I do quite a bit of hand loading and never had this happen didn't really expect to see it from factory ammo. I have reached out to nosler working on sending the ammo back to them so they can test it. Curious anyone else have these kinda issues before with factory ammo.

Ammo is nosler expansion tip
Caliber 300 win 180gr

130 gr Win XP3 270wsm factory ammo was over pressure alot. Hard bolt lift about 50% of the time. Flattened primers but never stuck a case. I shot a small mulley doe at 100 yards who was facing me head on in the middle of her chest, drt, the bullet went all the way to her rump and stopped just under the hide. That's a lot of penetration and it was a perfect mushroom. That's the only round on a deer that I've ever recovered because they usually exit. Sometimes factory ammo is a bit warm.

Dmagna · Sep 14, 2024

I would assume water or debris in chamber or barrel. You got lucky on this one, but the big question here is the moose dead?

andy10401 · Sep 14, 2024

Window said:
Any chance some sort of debris, water or excessive oil was in the chamber?

I know the barrel was free of obstructions but I didn't think about there being water. The day prior was a really wet day (been a wet end of the summer/ fall up here)

andy10401 · Sep 14, 2024

Dmagna said:
I would assume water or debris in chamber or barrel. You got lucky on this one, but the big question here is the moose dead?

Yup it wasn't the biggest moose but it sure is a good eater.

340 in Va · Sep 14, 2024

andy10401 said:
Yup it wasn't the biggest moose but it sure is a good eater.

I'm going with water and close to max factory ammo. Some really good eating and what a view. Hope to get a moose in Newfound week after next. First try for Bullwinkle.

Issues with factory nosler ammo.

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