SAFETY ISSUE using Hunter 440 wood stock on a Whisper!!! (or other syn. Gamos)

[cnsjones]

I offer this just as a thought:

Copper and steel is somewhat galvanic.

See:  http://www2.mtec.or.th/th/research/famd/corro%5chowmetals.htm#table1

The relationship is shown in Table 2 near the end of the article.

You may end up with some corrosion that you do not like.

[CO_AirGunner]

FWIW, my cross pin is not splined either and if there is no pressure on it, it is a slip fit.  I am an engineer by trade, and well understand the mechanical assembly of the rifle.  I was uncomfortable with how much the cross pin tended to shift, and while it may just be resting there and might not cause me any headache, the anal retentiveness in me was why I went ahead and made the endcap.

Also, I recently took the action out of the stock to clean the trigger group (the dirt and dust from many camping trips had it a bit grimey), and I see no corrosion of any sort between the two metals.  Not to say it won't happen.  Maybe the fact that the action is blued provides enough of a barrier between the two metals that they don't corrode; I don't know.  I'll certainly keep an eye on it.

[cnsjones]

Hey engineer man:  I am still thinkin about ordering a Hunter stock for my Whisper.  Can you give me a swag on how much difference in weight between the composite and the wood?

Thanks.

Fuller

[triry]

ok....with all that said, will the hunter 440 stock accept a big cat barrel/action..?

[kkoenning]

Yes, it will. A small amount of sanding is necessary if you want the plastic end piece to fit on the back end of the action.

[Uncle J]

Just got my Hunter 440 wood stock for my whisper and it fit just like the synthetic stock no modifications except that I had to take the shim out by the roller. The plastic piece on the end of the action fits  just like it had been cut for it, the safety issue with the pin seems to have been fixed, the stock fits tight against the pin. My groups are a little tighter now also.  I'm very well pleased with this stock modification to my whisper.

Jeff

[redroush00]

They look identical but theres something just not flush. Any Ideas?

[CharlieDaTuna]

Not quite true regarding the pin. Not all of them have the serrated pin as shown in the picture and are not tight . In fact, if the block is relieved just right with the non serrated pins, you can just slide the pin in and out with your fingers. They used to all be like that.

[Uncle J]

No, but maybe someone else will have an idea.

[CO_AirGunner]

Looking at your pictures, that is definitely a different stock than mine.  They must have changed the 440 stock recently to match the newer style like the Whisper synthetic, as the one I got matches my father-in-law's 440 from the late 90's.

Good in that you don't have to mess around with the endcap like I did and it is now a truely drop-in mod.  I wonder if this is also now why you can get a wooden-stocked Whisper straight from Gamo.

[Uncle J]

I had already cut the copper cap in preparation for the new stock. I was surprised when I got this one.

Jeff

[chortdraw]

http://smg.photobucket.com/albums/v79/Chortdraw/?action=view¤t=Airrifles019.jpg

[Uncle J]

Chortdraw,
Some nice carving on the butt of the whisper. I also see that you are an archer, my passion also.

Jeff

[chortdraw]

Thanks Uncle J. I love archery and build my own bows, both longbows and some recurves. Don't shoot compounds any more but keep up on all the new designs.
Really enjoying these air gun though. Can shoot through my house and out the back door to the 6' high fence where I have a 2' x 3' target trap I made. Can get 30 yards this way
and nobody can hear anything. My neighbors don't care anyway. Also have a 20 yard archery target with bales and some 3-d targets and can tune my bows as I build them. Just got a crony so I can tune my airguns also.