Jackie-Singled out using a Farley action

Sourdough

From reading your post, I do not believe you quite understand the construction of the "aluminum" actions, the two most popular being the Kelby Panda and the Stiller Viper.
The aluminum body is not exposed to any chamber pressure what so ever. All of the chamber pressure is contained in the Alloy Steel insert that is in the front of the action. You could literally remove the insert, screw a barrel into it, load a round, insert the bolt so it locks, and, (if you had a trigger), fire the round.
I believe you post shows a ignorance of the subject. Please, that word "ignorance" simply means that you are not aware of the true facts of the situation. It is NOT a derogatory term.......jackie
 
jackie schmidt said:
From reading your post, I do not believe you quite understand the construction of the "aluminum" actions, the two most popular being the Kelby Panda and the Stiller Viper.
The aluminum body is not exposed to any chamber pressure what so ever. All of the chamber pressure is contained in the Alloy Steel insert that is in the front of the action. You could literally remove the insert, screw a barrel into it, load a round, insert the bolt so it locks, and, (if you had a trigger), fire the round.
I believe you post shows a ignorance of the subject. Please, that word "ignorance" simply means that you are not aware of the true facts of the situation. It is NOT a derogatory term.......jackie
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no harm done jackie, i've been ignorant before. i was just going off the available pic. as for it having an insert i didn't see one in the pic at the time and don't see one now. but be that as it may, like i said, i don't own any actions of this type. if they contain an insert then basically all the action does is give you a place to mount the insert and trigger. as for the aluminum not seeing any pressure that may be true to a point. i will agree that the action body should not be seeing enough pressure to cause it to fail. so it appears that the steel insert is the component that is failing, causing the the failure of the action body and possibly the bolt also. i would think the manufacture would be all over this type of failure.
 
The action being discussed, Farley, is not made of aluminum, nor am I aware of ANY failures of actions that are aluminum, all of which have steel inserts. When talking of action failures, it is a good thing to have one's facts straight, lest someone get the wrong impression about products that are well made, and have no history of structural problems.
 
Apparently there are some on this thread (forum too) that do not know how the aluminum actions are built. During a case fire forming session I accidently "TESTED" one of Stillers Viper actions. Someone with the knowledge suggested my load was probably above 90,000 psi. I don't know, but there was no primer to be found and the case expanded .045 at the head. What happened to the action and barrel.....nothing that I can find. I inspected everything very closely and can find nothing wrong. I don't recommend anyone doing this at all. The rifle functions and shoots as good as it ever did and with the same barrel.....Donald
 
Setting something strait....

PPPMMM attached pic it of a SAKO 75 action ... It's not aluminum.

This particular "accident", if I remember right was due to the shooter either leaving a cleaning rod OR a bore sight device in the barrel.............:eek:

Though, Sako has had a few reciever material issues and I pretty sure a recall fairly recently...

For the record... I have NEVER heard of ANY BR aluminum action fail... Through misuse or suspect manufacture..........

cale
 
Actually Sako had a few failures around the world... it had to do with faulty stainless barrels... the barrels failed on factory ammo and usually split the actions in half. There was a recall and I imagine it has not been all settled yet.
 
Dennis Sorensen said:
Actually Sako had a few failures around the world... it had to do with faulty stainless barrels... the barrels failed on factory ammo and usually split the actions in half. There was a recall and I imagine it has not been all settled yet.
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Yep, that's right I do remember now. It was a barrel material (alloy) issue.
cale
 
Issues with aluminum.

Just to clarify some factors about the behavior of aluminum alloys, (not necessarily related to rifle actions), I thought I'd post.

One of the main issues with using aluminum alloys as engineering materials is that the designer must understand that aluminum alloys do not exhibit a Fatigue Limit. This means that there is no "threshold" level of stress which will not ultimately result in a fatigue failure. Aluminum alloys still behave elastically (they will return to their original shape/size) if they are not loaded above their proportional limit, but all aluminum alloys are subject to fatigue failure.

This is not true for steel alloys. Steels exhibit a Fatigue Limit. As long as this threshold stress is not exceeded, a fatigue failure will NEVER occur with a steel alloy.

Again, this information is not intended to imply that fatigue failures occur with aluminum benchrest actions, only that aluminum alloys as a family are subject to faigue failures, whereas steels will not fatigue if stressed below their fatigue limits.

SteveM.
 
Jackie.............................

The aluminum body is not exposed to any chamber pressure what so ever. All of the chamber pressure is contained in the Alloy Steel insert that is in the front of the action.
Click to expand...

So your contention is that when the barrel expands from chamber pressure, and the expansion is transfered to the action insert, the insert doesn't expand in kind?
 
Dennis- You'r right

Dennis Sorensen said:
Actually Sako had a few failures around the world... it had to do with faulty stainless barrels... the barrels failed on factory ammo and usually split the actions in half. There was a recall and I imagine it has not been all settled yet.
Click to expand...
,,,,,,,,,,,,,,

This pic. is from that accident,,,the action is SS Sako.

Shoot better
Peter
 
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