Catastrophic Failure

[25 Sharps]

Wont have a boresnake in the house ... spoken to 3 seperate gunsmiths who say they had more work from folk whk snapped boresnakes than anything else.... some who went on causing more damage trying to get it out themselves

Back to OP

As said the .17hmr and its ammo has reputation for this

Paul

Used them for years on multiple rifles, not got one stuck yet!

(That’s probably been and done it )

 

[hammo]

Modern rimfire rifles are designed to leave the bottom part, of the base of the case rim un enclosed, it's a deliberate weak point to vent the overpressure downwards, that's why 17 hmr blow the mag off with a blocked barrel.
To see for yourself? Chamber an EMPTY rimfire case, remove the mag and look in the mag well. You will see a bit of the brass rim exposed, when the bolt is fully forward.

 

[charlie222]

I've seen a blown out barrel from a shotgun and how the guy kept his fingers is beyond me. Glad there was no harm done in this case too. Keep safe

 

[Overlay]

Modern rimfire rifles are designed to leave the bottom part, of the base of the case rim un enclosed, it's a deliberate weak point to vent the overpressure downwards, that's why 17 hmr blow the mag off with a blocked barrel.
To see for yourself? Chamber an EMPTY rimfire case, remove the mag and look in the mag well. You will see a bit of the brass rim exposed, when the bolt is fully forward.

learn something every day cheers Hammo just explained my 17 HMR demise a while back

 

[Corf30]

Iv heard this story before with a .17 and a mate of mine

 

[Greenmist]

Some don’t know to put some strong cord through the tail of the snake so you can pull it out backwards in the rare event it might break.
I think buying cheap (Deliberate or not) knock off bore snakes doesn’t help.
I sometimes pull a 243 snake ( Bit of lube on it) through my 308 if I’ve only fired one or two shots.
KB.

I tend to remove the wire brush and just use the cord to remove crud

 

[Greenmist]

I never clean my rifles. They get a pull through with a boresnake, and wiped with am oily cloth.

None have ever exploded

I'd say that was cleaning, a light clean but still a clean. Lots to be said for the benefits of a wipe over with an oily rag as well

 

[User00056]

I'd say that was cleaning, a light clean but still a clean. Lots to be said for the benefits of a wipe over with an oily rag as well

Yes, I should've said 'deep cleaning', really. I'm a fan of Renaissance Wax on the wood, too

 

[Foxyboy43]

Hmmm. I have put a lot of rounds through mine and love it. That said it is a filthy little round and I have yet to be able to drop a pull-through all the way through without pushing a nylon rod through first. I always check each box’s contents for split cases which fortunately in recent times are now very rare - as a result I have never had other than the expected outcome when I squeeze the trigger.
I have seen two rifles with severe damage around the mag well and just back from the forehand grip area - intentionally designed venting areas which did their job well. Both rifles had a previous bullet lodged in the barrel and the “Dead Man’s click” had been ignored by the two owners - to their regret.

 

[Greenmist]

Yes, I should've said 'deep cleaning', really. I'm a fan of Renaissance Wax on the wood, too

Will give that a try, will it go straight onto an oiled stock, or would it need to be stripped first

 

[User00056]

Will give that a try, will it go straight onto an oiled stock, or would it need to be stripped first

Straight on as it is. Brilliant stuff! It's great on metalwork too

 

[Heym SR20]

Any machine will work a lot better and a lot lot longer if it is looked after and kept free from rust and decay. Applies to cars, boats, farm machinery and all types of firearms.

If you choose not to look after it, that’s your choice, and the dealers will love you for it, and sell you a new one when the old one dies young.

 

[The Singing Stalker]

Is the sound of a squib load readily determinable if a moderator is fitted and stuck outside a vehicle window with engine running?

K

Yes, 100%

The problems with the HMR are well documented and even how the issue occurs. They have sorted it (mainly). I haven’t had a damp squib for years.
In saying that, I always carry a rod, just in case, old habits.
When you take a shot, and it doesn’t sound right, stop, eject, remove magazine and bolt. Then shine a light up the barrel to see if there is a lip of lead wedged up there.

 

[TringSaint]

I would expect so, there is no supersonic crack.

I have had two squib rounds go off and on both occasions they made very little noise - barely more than the pin releasing and making a click.
The only reason I knew something was up was down to the very feint recoil and the fact that a ‘spent’ case was ejected.
That was it.
In both cases I was able to tap the round down into the breach using a rod, so I don’t know if a second round could have been fully loaded or not.

 

[hairlesshunter]

Any machine will work a lot better and a lot lot longer if it is looked after and kept free from rust and decay. Applies to cars, boats, farm machinery and all types of firearms.

If you choose not to look after it, that’s your choice, and the dealers will love you for it, and sell you a new one when the old one dies young.

And it also applies to females

 

[Heym SR20]

And it also applies to females

Agreed, wifymatics do need such attention !!!

 

[sauer]

If its got an engine, wheels or tits it will cost you money and at some point stress

 

[tarponhead]

And it also applies to females

Do they need the oily rag treatment as well? I’ll try it and report back…

 

[muddy42]

Isn't this a well known issue with the 17 HMR ?

 

[gixer1]

Isn't this a well known issue with the 17 HMR ?

Yup….i don’t see the same common issues with any other chambering.