woodsman1st
Bearcat
Never even thought of that Mike; sad to say, I believe you are totally correct.
Ken
Ken
SR9 Barrel Peening
- Thread starter Turbobuddha
- Start date
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woodsman1st
Bearcat
Never even thought of that Mike; sad to say, I believe you are totally correct.
Ken
Ken
Thats one of the reasons I like to read the forum boards. You get to see what the average gun owners experiences are without the hype woodsman. I do hope Ruger gets this issue straightened out before their reputation suffers more than it already has.
preventec47
Bearcat
- Joined
- Jan 28, 2010
- Messages
- 5
Gentlemen, that is not peening, that is just
the normal break in process. Just joking
but it could be true to some extent as there
are many mechanical devices that have
contact components that wear into a better
fit. Gears in transmissions immediately come to mind.
It could well be likely that at some point
of deformation that the parts fit so well
that no more force is being applied to cause
more deformation.
For those that are more familiar with the
functioning, what if the interfering metal were
removed by grinding for instance where
the peening is taking place. Would there
be other areas where the loads are
distributed over a much larger area
so that deformation no longer takes
place ?
I suppose I should differentiate between
peening and wear just for the sake of
conversation. One is the hammering
at concentrated pressures past
the yield point of the metal
and the other is simple grind and wear away
of contacting surfaces.
the normal break in process. Just joking
but it could be true to some extent as there
are many mechanical devices that have
contact components that wear into a better
fit. Gears in transmissions immediately come to mind.
It could well be likely that at some point
of deformation that the parts fit so well
that no more force is being applied to cause
more deformation.
For those that are more familiar with the
functioning, what if the interfering metal were
removed by grinding for instance where
the peening is taking place. Would there
be other areas where the loads are
distributed over a much larger area
so that deformation no longer takes
place ?
I suppose I should differentiate between
peening and wear just for the sake of
conversation. One is the hammering
at concentrated pressures past
the yield point of the metal
and the other is simple grind and wear away
of contacting surfaces.
S&W Fan
Bearcat
will a new barrel eliminate this problem????
woodsman1st
Bearcat
I think it would temporarily; but then the new barrel would show peening in ltime also. The barrel is the result; whats peening it is what has to be fixed...i think. What do the experts have to say?
preventec47
Bearcat
- Joined
- Jan 28, 2010
- Messages
- 5
Only two possible explanations.
1. greater stress than anticipated for the surface area being
pounded
2. material resistance to pounding is less than anticipated.
You can reduce the total stress or dispurse it over a larger
area or over a longer duration.
and/or you can increase the material properties to resist
the pounding.
The whole gun works as a system and no one outside
ruger seems to know the answers although I bet someone
inside Ruger knows exactly what is going on and they
are making "business" decisions to deal with it.
First of all the problem is limited to the very small percentage
of gun owners who shoot their weapons a lot. But there
are also considerations of cost to marketing image as to
how they deal with the problems.
It is doubtful they brought this pistol to market without
firing a hundred thousand rounds through a few of them
so I think we have a quality control issue with the metalurgy.
Or... tolerances could have slipped in the manufacturing process
etc. to create more interference. Or maybe it was an executive
mistake where they tried to cut corners in testing and hurry the
product to market ? ? ?
1. greater stress than anticipated for the surface area being
pounded
2. material resistance to pounding is less than anticipated.
You can reduce the total stress or dispurse it over a larger
area or over a longer duration.
and/or you can increase the material properties to resist
the pounding.
The whole gun works as a system and no one outside
ruger seems to know the answers although I bet someone
inside Ruger knows exactly what is going on and they
are making "business" decisions to deal with it.
First of all the problem is limited to the very small percentage
of gun owners who shoot their weapons a lot. But there
are also considerations of cost to marketing image as to
how they deal with the problems.
It is doubtful they brought this pistol to market without
firing a hundred thousand rounds through a few of them
so I think we have a quality control issue with the metalurgy.
Or... tolerances could have slipped in the manufacturing process
etc. to create more interference. Or maybe it was an executive
mistake where they tried to cut corners in testing and hurry the
product to market ? ? ?
Cheesewhiz
Hunter
tkarter":1ufveqh6 said:
I shot my SR9 today about 250 rds, I haven't shot it much lately, that gun still shoots great and is fairly damn accurate, seriously it has never had a failure with all the rounds I have put thru it.. I also got to shoot an SR9C, a new owner's, it did just fine, the trigger was very good. That barrel is pretty long for an almost sub-compact, it's a very nice gun and Ruger should sell a lot of them.
Cheesewhiz
Hunter
tkarter":3sm4r6tj said:
tkarter, I have a first run SR9 with a ton of rounds thru it and it has a slight amount of peening, pretty much not noticeable at all. That gun has been a very good buy for me, I do tend to judge guns on accuracy but my SR9 has been a good shooter and fantastically reliable. I would never tell someone not to buy one as mine has been a very good gun.
My line of thinking on the peening issue is not bad barrels. It is timing issues.
If the takedown pin goes through the cam and is part of the action I am thinking the pin moves more in some than others or the polymer is flexing more in some than others.
I believe the peening issue is real but not the majority of SR9s.
I don't have one nor have I ever shot one.
I just have been considering based on all the talk here on the forum.
And I also may be totally wrong.
tk
If the takedown pin goes through the cam and is part of the action I am thinking the pin moves more in some than others or the polymer is flexing more in some than others.
I believe the peening issue is real but not the majority of SR9s.
I don't have one nor have I ever shot one.
I just have been considering based on all the talk here on the forum.
And I also may be totally wrong.
tk
Cheesewhiz
Hunter
If you look back on this forum, I have always said that the peening issue is a timing thing.
My gun does flex, as all polymers do, that's why it's recoil is so mild.
My gun does flex, as all polymers do, that's why it's recoil is so mild.
3leggeddog
Single-Sixer
tkarter":1u9umjep said:My line of thinking on the peening issue is not bad barrels. It is timing issues.
If the takedown pin goes through the cam and is part of the action I am thinking the pin moves more in some than others or the polymer is flexing more in some than others.
I believe the peening issue is real but not the majority of SR9s.
I don't have one nor have I ever shot one.
I just have been considering based on all the talk here on the forum.
And I also may be totally wrong.
tk
Consider this, when I took my CCW class I shot 120 rd of Spear Lawman. They did seem hotter than other target rounds when shooting.
I didn't have any peening before that, it did after, a good size lip!
I wonder if +p type ammo causes a timing issue=to slam?
I recall all that Cheezwhiz. Was just stating my opinion on the matter for my own it makes sense to me kind of thing.
I just doubt Ruger barrels differ much in hardness or build. Would make more sense the polymer frames were more varied during the process than the metal parts. Or it seems that way to me.
tk
I just doubt Ruger barrels differ much in hardness or build. Would make more sense the polymer frames were more varied during the process than the metal parts. Or it seems that way to me.
tk
Cheesewhiz
Hunter
I run S&B's and NATO thru mine, you won't find much 9mm hotter than those.
stchman
Bearcat
Here is my SR9 barrel with over 1000 rounds put through it. I see nothing to note. Yes, there is a little wear, but metal on metal is going to wear.
