Thread: 17 HMR case rupture.

Was at the range today and noticed a number of my spent cases were split from the neck and down the shoulder. The rifle was shooting as per normal. No sign of any other issues. Anyone come across this before?

I don't shoot much at the range so don't usually see the case after it has been fired
Sorry about the crap photo.

yep i get it sometimes. (sako quad)

Yep had it with my CZ but not so much in the Anshultz, but common, just don't reload the damaged ones

Thanks guys. That's reassuring I guess.
Ammo is Hornady 17gn in my CZ. My only concern is undue erosion in the chamber.
Do you two use Hornady?

yep mainly hornady but had it happen with cci as well. Think its the same ammo

Nope same ammo, same result

Originally Posted by Shearer

Was at the range today and noticed a number of my spent cases were split from the neck and down the shoulder. The rifle was shooting as per normal. No sign of any other issues. Anyone come across this before?
Attachment 28393
I don't shoot much at the range so don't usually see the case after it has been fired
Sorry about the crap photo.

Are the splits in the same position on each case relative to the firing pin mark?

No. Random.

Well known issue with 17hmr amo. Widely documented and known by manufacturers

https://www.google.co.nz/?gws_rd=ssl...plit+case+neck

Thanks Pengy.
Should have Googled it first eh.

Yup sure is very common on the 17hmr.
Funny you say that Maca49. My uncle had the same with his CZ - he blamed the gun saying poor quality manufacturing sent it back and bought himself a Anschultz.

I've fired 150 in the last month or so and not one had split

Sent from my work bench

Originally Posted by smidey

I've fired 150 in the last month or so and not one had split

Sent from my work bench

Try pulling the trigger harder?

Originally Posted by CZ Lux

Yup sure is very common on the 17hmr.
Funny you say that Maca49. My uncle had the same with his CZ - he blamed the gun saying poor quality manufacturing sent it back and bought himself a Anschultz.

Yep nice rifles, bolt configurations a bit shitty but works OK

Happens regularly in my excell semi, doesn't seem to do any harm so I have never worried about it even tho it never seems to happen in the Annie