Ruger blow up?

[kenbro]

Screen shot. Ken.

 

[Donkey Basher]

Video has been removed

 

[Dunwaters]

I saw it, could have been a squib load. The rifle “ failed safe’ for a right hander, more or less, but it put me right off owning one.
Or any other .17 for that matter.

 

[farmer7]

Scroll to 19:20.

 

[tarponhead]

8i saw it and the barrel was clear - no squib load he reckoned. It was a .17WSM not HMR, I think?

 

[pjkaz]

Would have been a different story if his hand had been forward off the trigger

 

[Foxyboy43]

Yep - watched it two days ago - horrendous!
His view was that hand-feeding a single round rather than cycling from the mag caused it - extractor not fully engaging on rim so breech not fully closed on firing detonation…..

 

[jthyttin]

extractor not fully engaging on rim so breech not fully closed on firing detonation

Fair point that for some reason I haven't thought about on rimfires. Including semiautos. Basically extractor is just another firing pin on rimfire, just a lot weaker than the one that is supposed to light the primer compound...

Off to watch the video!

 

[Smellydog]

Huh, no rifle can fire out of battery and no, no extractor is a firing pin on a rimfire otherwise auto 22's wouldn't work becoming an instant full auto useless thing.
Typical assuming again that leads to presumptions

 

[jthyttin]

and no, no extractor is a firing pin on a rimfire otherwise auto 22's wouldn't work becoming an instant full auto useless thing.
Typical assuming again that leads to presumptions

And what do you call a thing that hits the primer? In a situation where the round is not in a "controlled feed", like if the round hits side of chamber and you try to chamber it by working bolt back and forth?

Yes it has a slope in front (at least most of them) and yes it has a spring that allows it to "step to the side" when that slope is camming against the rim, but nevertheless it hits the "primer".

 

[One on top of two]

I thought the 17wsm ( derived from a nail gun cartridge ) was a big fat flop in UK about 5 - 6 years ago , nobody could get hold of ammo along with other issues

 

[jthyttin]

Watched the video (with great effort since internet connection or youtube was slooow). Appreciate the guy giving raw footage, his knowledge of guns isn't too comprehensive... seems like ammo problem.

- gun didn't fire out of battery, bolt was fully closed looking at the video (and his comment also)
- two previous shots recoiled and sounded the same, so no bullet blocking the barrel
- his theory, kind of last straw, was that maybe extractor "created a weak spot" in the rim; would've been really sharp edge to do the damage but wouldn't rule it out

 

[KimE]

It shows why military rimfires were a dead end of developement, they couldn`t take as much pressure as a muzzleloader.

 

[Smellydog]

And what do you call a thing that hits the primer? In a situation where the round is not in a "controlled feed", like if the round hits side of chamber and you try to chamber it by working bolt back and forth?

Yes it has a slope in front (at least most of them) and yes it has a spring that allows it to "step to the side" when that slope is camming against the rim, but nevertheless it hits the "primer".

The rifle was clearly in battery. You are talking nonsense.
The priming compound needs percussion for a start. Not a push.
As mentioned before, auto 22 rifles would of demonstrated your imagined scenario and probably be banned by now.
A cartridge in any breech loader is not as you imply loose enough to, your words, " hits side of chamber" when near completely in battery.
No, the extractor does not hit the " primer" with any percussion.

Put your theory down and step away from it.

 

[Smellydog]

Classic ammo failure.
He is in a high temperature environment.
17wsm is pushing what sheet brass can take.
Sheet brass can have a flaw in it and go unnoticed.
Said years ago the 17wsm should of been a .22 or even .25 which would help to keep pressure lower.

 

[KimE]

The problem with rimfires is the case need to be thin and soft so you can ignite the priming compound. It works perfect for cheap 22lr the 17hmr stretch the modern developement and the 17wsm are beyond reason when you can have a cheaper and more reliable centerfire.

 

[KimE]

Wänzl 1854/67 rifle 14mm rimfire

 

[jthyttin]

The rifle was clearly in battery. You are talking nonsense.

Suggest you take few deep breaths, maybe in a paper bag. Also re-read, if it doesn't help take a lesson.

I wasn't talking about the video with the "extractor being firing pin". If others keep tripping on it, I need to face the fact that I cannot write for sh*t. H*ell I even said I'm gonna start watching the video AFTER I commented on the exctractor...

And yes in the future I'm going to pay very close mind to clearing jams in rimfire. Especially semiautos. What do you think exctrator does to the rim of partially chambered round, if you pull the bolt back and let go? And yes, there are things that might be done in heat of moment, shooting against clock be it minirifle, turning targets, running boar or something else...

I've actually ruined a rimfire barrel (T&C Benchmark) due to manufacturing flaw and bad decision, during falling plates competition. And it was very definitely an exctractor issue...

 

[Smellydog]

What do you think exctrator does to the rim of partially chambered round, if you pull the bolt back and let go?

Absolutely nothing, it does absolutely nothing. It offers no percussion to the rim what so ever.
The percussion from a firing mechanism far out weighs any shocking force from an articulated extractor.
The only way to possibly achieve what you suggest would be via increasing the bolt speed to an impossible degree.

 

[jthyttin]

Absolutely nothing, it does absolutely nothing. It offers no percussion to the rim what so ever.
The percussion from a firing mechanism far out weighs any shocking force from an articulated extractor.
The only way to possibly achieve what you suggest would be via increasing the bolt speed to an impossible degree.

Ever heard of (sub)machine guns firing from open bolt?

Not saying that extractor is as "efficient design" as firing pin, but many rimfire firing pins are not that "efficient" in the first place (i.e. they're blunt and seem to hit everywhere else than where they should). But if exctraction is already failing (otherwise you couldn't have partially chambered round and bolt back) the extractor could be damaged, either lodged in position or maybe even position undamaged exctractor couldn't be.

Not saying it happens, but don't want to be around if it does.