Something to inspect for...

[hogdogs]

I did tear my gun down per field strip instructions upon getting it home, did a little lookin' and cleanin'. I had it down a few times but never noticed a gouge inside my reciever. The firing pin rollpin had not been driven all the way home and had done the damage.
What this tells me is the roll pin is hardened and also that it needs inspected on all new guns and at each following field strip.
Brent

[Bullseye]

You make a good point. Fortunately the gouge is inside the receiver where it cannot be seen. Having that stop pin contacting the receiver tube would definitely impact the pistol's cycling. One could expect FTFs and FTEs with that condition inhibiting the bolt's smooth operation.

R,
Bullseye

[hogdogs]

I did not notice any improvement in cyclic rate and never had an ftf (several dang dud rounds with remington thus far before and since fixing the pin) nor a single fte... but that gouge chaps my rump...
Brent

[Bullseye]

I understand your unhappiness but if there was enough friction to gouge the receiver then the bolt's movement was being slowed down by drag. I don't know how badly it is gouged but if it is significant then you could contact Ruger. They'd likely have you send the pistol back to them to evaluate the damage. A bad enough gouge may warrant the replacement of the receiver.

R,
Bullseye

[bearandoldman]

I did tear my gun down per field strip instructions upon getting it home, did a little lookin' and cleanin'. I had it down a few times but never noticed a gouge inside my reciever. The firing pin rollpin had not been driven all the way home and had done the damage.
What this tells me is the roll pin is hardened and also that it needs inspected on all new guns and at each following field strip.
Brent

Can you define "gouge" or is it just a scratch or maybe only a witness mark. If the pin was dragging so bad as to gouge the inside of the receiver the fun would not have worked at all. I worked in design and manufacturing engineer inf for years and yes this may be one bad unit in a 1,000. Remember that a gun is only a tool to get a job done, If the scratch is inside the receiver it will never be seen by anyone other than you and it will not effect the operation of the gun.
The manufacturer will warranty it's units as far as workmanship and material and as far as I can see, if the gun operates properly they will most likely not replace it. And then you have to think , if they send me another one what will it be like? it may not be as good as the one you sent them.
Just some thought s from an old man who has been in manufacturing and service all his working year.

IO always operate on the old saying :"if it ain't broke , don't fix it, and just use it for it's intended purpose of shooting.

[hogdogs]

It is a gouge that would measure several thousandths of an inch deep. it is exactly like a wrist pin gouge in a cylinder wall of an engine in appearance. It is as long as the travel and has the round shape at each end of travel. I doubt it would ever be an issue I have since seated the pin into the bolt.
I just want folks to look for this to avoid any more gouged pistols...
Brent

[bearandoldman]

It is a gouge that would measure several thousandths of an inch deep. it is exactly like a wrist pin gouge in a cylinder wall of an engine in appearance. It is as long as the travel and has the round shape at each end of travel. I doubt it would ever be an issue I have since seated the pin into the bolt.
I just want folks to look for this to avoid any more gouged pistols...
Brent

Can you measure it? if it was several .001 deep it would not have let the bolt operate to load and eject shells because of the excessive drag. I have several Ruger 22/45's but mine are all loose pins as they are all MarkII pistols. I have seen wrist pins in small engines at least .060 deep and as long as the were not where the ring ran over them and lost compression they were fine. The pin in your bolt is a press fit, not a loose fit like a wrist pin that uses a retaining ring. Truthfully I can not see how it could wear out by sliding up against the wall as the press fit should have held it in. Whatever, as long as the gun operates properly, I can see no problem with it other than cosmetic.
If you feel that you have a problem call Rugers' customer service they do not have a toll free number. Call 928-778-6555,

[hogdogs]

Tonight I decided to give my gun a 100% tear down and cleaning... In doing so I took a couple pics along the way and these are of the "gouge"...
I have no idea why it worked flawlessly unless the pin was steadily coming out more each shot. It took many hundred rounds to do this damage.


Brent

[bearandoldman]

hogdogs, I have relatively no experience with the MarkIII pistols, all of mine are MarkII's. Are you sure it is from the pin or is it just a witness mark from the slot in the bolt for the loaded chamber indicator to run in. It does not look very deep to me, looks like it has just worn through the bluing of th receiver.
If you do not like it, I think you should call Ruger and maybe the problem can be resolved.
I'm sorry but I am just an old man that operates on the theory that id it ain't broke it don't need fixing. if it is working properly and not jamming or anything maybe it ain't really broke.

[hogdogs]

It is noticeably deeper than just the bluing. I am like you in that I don't care to fix what ain't broken. it was surely from the pin. It starts and stops where the gouge is and the pin's end was polished and had debris on it as well... I just want others to be aware to look for the condition on their pistol. The pics were just to show the gouge was not just a scratch exaggerated by a hysterical redneck...
Brent

[bearandoldman]

If you found debris on the pin that has got to be the cause. I must have been sticking out a thou or two, any more and I do not think the gun would have had the proper bolt travel to eject, and load.
If I were you, I would just keep on shooting It. Remember anything that is manufactured is not perfect, nor are we. I look bad on the outside but I still work, at least you gun looks bad on the inside and that don't show.