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Mark IV bullet exploded, shrapnel hit face.

This is a discussion on Mark IV bullet exploded, shrapnel hit face. within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; Wingspar- Every semi-auto rifle or pistol needs a mechanism to force the shooter to release the trigger before every single shot. This mechanism is called ...


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Old December 7th, 2019, 01:13 PM   #31
 
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Wingspar-

Every semi-auto rifle or pistol needs a mechanism to force the shooter to release the trigger before every single shot. This mechanism is called a disconnector. There only 2 types, even though they may be implemented in different ways.

The first type only disconnects the trigger when the bolt/slide is nearly all the way back. The 10/22 is of this type. The nice thing about this design is you never need to dry fire the gun. You can pull the cocked bolt/slide back until it just touches the hammer, pull the trigger, and gently close the bolt/slide with the hammer riding it down. The down side to this design is a higher probability of having a serious OOB.

The second type always disconnects the trigger except when the bolt/slide is nearly all the way closed. The Mark pistols are of this type. The nice thing about this design is it prevents serious OOBs and greatly reduces them from occurring at at. My pistols disconnect the trigger at a measured .100" out of battery. The down side of this design is you must dry fire to uncock the hammer. (I have modified my bolts to allow the same soft decocking as the first type, while retaining the OOB protection of the second type.)

Allegheny7147-

Using hyper-V ammo like Stingers is a very bad idea. The case length should be a non-factor in sporting chambers like Mark pistols have. BUT the increased velocity of the ejection cycle will pummel your pistol badly. A few Stingers occasionally won't do a whole lot of damage, but a steady diet of them will absolutely do irreparable harm.

If your pistol is having problems cycling HV/SV ammo, you need to figure out why and address the root cause. Start a thread here including pics and a description of what's happening and we can help you figure it out.



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Old December 7th, 2019, 01:21 PM   #32
 
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Quote:
Originally Posted by wingspar View Post
I have to wonder, and ask, why are the cases of Stingers longer than normal .22 ammo?
Easy enough.

SAAMI specs 22LR to be 0.950"-1.000" in length. A smaller bullet to increase velocity would drop the length to become a Long. Increasing the case length was the solution.

I've seen the opposite scenario as well. There are some "Tactical" subsonic rounds that shoot a larger 60gr bullet, and the case had to be made shorter to keep the overall length to 22LR specs.

Last edited by TestEngineer; December 7th, 2019 at 04:26 PM. Reason: corrected specs
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Old December 7th, 2019, 03:40 PM   #33
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TestEngineer, That's something I never thought of and it makes perfect sense, however I think you mean .95~1.00", .095" would be just a little short. Hornady does the short case trick with their LEVERevolution straight wall ammo for the same reason.
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Old December 7th, 2019, 04:27 PM   #34
 
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You are correct Iowegan. Thanks for catching that misplaced "0". I've corrected my post.
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Old December 7th, 2019, 07:11 PM   #35
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Why use Hyper anything when shooting paper?.. I guess I don't get that mindset.. I have 3 Ruger semi auto .22's.. 22/45- SR 22- 10-22

When target shooting i put cheap Remington bulk bucket through them all, and NEVER an issue.. just none... I have some CCI Stingers, and a few other brands of
"hotter rounds", but really have only shot a few of them here and there.. just no need.

You CAN put too hot a round in a gun, and do some real damage to the firearm, and to yourself.
ruger .22 semis are notoriously NON finicky when it comes to ammo, unlike some other brands.. Keep it fairly clean and lubed, fire plain old .22 LR target, and save the money spent on that hyper stuff.. If you want a hot .22 you're way better off with a .22WMR firearm anyway...

Very glad you were not hurt!!! bob
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Old December 7th, 2019, 07:26 PM   #36
 
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Sounds like a gun guy when you take some shrapnel to the face and say how great it was that your, red dot scope, was not even scratched! I am glad you were not hurt. Most guys have more pain from a bee stinger to the face than you did from a Federal Stinger. How lucky is that??
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Old December 8th, 2019, 10:24 AM   #37
 
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Quote:
Originally Posted by stoble View Post
Sounds like a gun guy when you take some shrapnel to the face and say how great it was that your, red dot scope, was not even scratched! I am glad you were not hurt. Most guys have more pain from a bee stinger to the face than you did from a Federal Stinger. How lucky is that??

lol, well i did say that in a separate post :-) I've had a lot of good times with that gun in the field,even though I've only had it a few months as I'll explain in a future post.

I wonder how that work out if ruger said I needed a new barrel,(a new serial number on it) I guess ownership transfer papers would have to be filled out again, I might not get the gun until the papers would be completed ?
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Old December 8th, 2019, 10:54 AM   #38
 
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When Ruger replaces a barrel/pistol, they have to ship to an FFL. It's up to you to pick who and to pay them for the transfer. Get an electronic receipt for the cost and send it to the person you deal with at Ruger. They will reimburse you (by check) up to $50.

It's not very likely they would need to replace it for any OOB though.
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Old December 8th, 2019, 11:18 AM   #39
 
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Originally Posted by TestEngineer View Post
When Ruger replaces a barrel/pistol, they have to ship to an FFL.
Can you clarify this statement. Are you saying they have to send it to an FFL for a barrel replacement/repairs or when they replace the entire firearm with a new one?
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Old December 8th, 2019, 11:25 AM   #40
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Mark, Ruger MK series pistols have the serial number stamped on the barrel assembly. Serial numbered frames or assemblies are treated just like an assembled gun so yes, an FFL has to be involved.
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Old December 8th, 2019, 11:26 AM   #41
 
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Quote:
Originally Posted by Mark204 View Post
Can you clarify this statement. Are you saying they have to send it to an FFL for a barrel replacement/repairs or when they replace the entire firearm with a new one?
Ruger generally wants you to send the entire pistol in for repairs (not just the upper). If they determine the barrel or receiver needs replaced, they just replace the entire pistol rather than change out barrels. At least that was my experience sending in a MKIII with a crooked chamber. The new pistol then goes to an FFL and not directly back to you.
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Old December 8th, 2019, 12:22 PM   #42
 
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Originally Posted by Iowegan View Post
Mark, Ruger MK series pistols have the serial number stamped on the barrel assembly. Serial numbered frames or assemblies are treated just like an assembled gun so yes, an FFL has to be involved.

Thanks Iowegan, that clears it up for me.
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Old December 8th, 2019, 03:10 PM   #43
 
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Quote:
Originally Posted by Iowegan View Post
Mark, Ruger MK series pistols have the serial number stamped on the barrel assembly. Serial numbered frames or assemblies are treated just like an assembled gun so yes, an FFL has to be involved.
Right off hand I don't know a FFL in my area, if I don't suggest one will they ship it to one close by ?

The ruger guy told me to take any accessory off the gun, I did take the scope off but left the mount on (that was hard to get rear sight off) hope they install the mount if I get a new gun. I told him I had upgraded the grips but said I can leave those on....
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Old December 8th, 2019, 03:46 PM   #44
 
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Originally Posted by Allegheny7147 View Post
Right off hand I don't know a FFL in my area, if I don't suggest one will they ship it to one close by ?
They will ask you to pick one. Buds, Grab a gun, GunBroker, all those online places list dealers in your area that have a copy of their FFL with them. One of those would probably already have a copy of their FFL on file with Ruger, but if not could quickly do it. They may suggest someone if you don't know anyone.

Sending it back to Ruger is the right/safe thing to do. Chances are you will feel better knowing they fixed the problem. It will be interesting to hear what they have to say when you get it back, but if they are like S&W; you will have to call and talk to someone to find anything out.

You need a local FFL that wants transfer business anyway. It saves you a whole bunch of money when buying new.
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Old December 9th, 2019, 07:26 AM   #45
 
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Take off every accessory / non Ruger item...yes , remove the mounts .
Ruger will not replace, pay for or fix any non Ruger parts sent to them along with your gun, good chance they might get damaged and/or lost ... that's why the tech. told you to remove them .

I wouldn't even leave the grips on....why take the chance of them getting lost in the shuffle !
Gary

Last edited by gwpercle; December 9th, 2019 at 07:29 AM.
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