Need help identifying primer failure

[Old Navy]

This type of failure is a first for me, any guidance is appreciated.

I was out shooting a new-to-me BSA Martini in 17 Ackley Bee and the action jammed up. I had to remove the scope and tap on the block to get it to drop. I was expecting the firing pin to be stuck and broken or something similar but the firing pin is in tact and no apparent issues with the action/block.

The primer of the last fired round looks like it has a broken pin in it though, and looks ok on the inside. This was round 16 through the rifle and a very low charge. See attached pictures, can anyone tell what's going on here? Thank you


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This is what they looked like before you extracted them.

 

[wkndwarrior]

I'd use CFE BLK and Rem 7 1/2s, it's a killer combination in the 17 Hornady Hornet, and they're relatively similar. Some people load with small pistol primers or Rem 6 1/2s and you get heavy cratering or blanking. If I were to use a small pistol primer, like I do in 22 Hornet with Lilgun, I'd use a CCI 550, as they have a cup similar to most small rifle primers, and will handle 50k+ psi without blanking. I doubt very seriously, you'll ever get enough Imr4198 in that case, to be satisfied. CFE BLK, SW Blackout, AA1680, and AA2200, are really the best options, you can try Imr4227, it'll be accurate, but probably slow.

If I work through these issues and find that it's accurate I might work up a load with CFE BLK, mainly because I have an 8lb jug and the IMR 4198 is more $$. I didn't find much in regards to tested loads though on the internet.

 

[Jason D Hostetter]

12grns in a Hornady Hornet under a 20grn vmax is very common. The 17 Ackley Hornet has a tiny bit more capacity. I'd say 11.5grns would be a good start.

 

[450BM]

Your gunbroker story makes me wonder how many bad reviews the seller has had. If your review was taken down, how many others? Is it against the rules of this site to put his name on here?

 

[Chilly807]

This is what they looked like before you extracted them.

Now THAT'S something I hope I don't see again anytime soon.. some of my 223 cases were exactly like that.

 

[Old Navy]

Now THAT'S something I hope I don't see again anytime soon.. some of my 223 cases were exactly like that.

That is a bad one for sure. They usually blow out before they get that bad. Bushing the bolt has cured four guns for me.

 

[charlie b]

That's an interesting story and one I will remember. Have worked with ebay for quite a while and they favor the sellers as well. Ebay has a known reputation for this. Am not surprised about Gunbroker as well, just a little disappointed.

The photo of the rifle looks like it is a great piece to start with. I hope you can work out the load issues and start to enjoy the rifle.