Converting .25 MRod Mag to .22 cal - Pic Heavy

[rsterne]

Here are pics of the finished mags, Joe....



You can see the #011 O-ring through the clear cover, it partly obscures the numbers on the wheel.... In the back view, if you look carefully you can see a ring of clear plastic around the head of the pellet, where the hardened glue made the through hole smaller.... Note how perfectly the pellet is centered in the bore now....

Bob

[lloyd-ss]

Bob,
I knew you would come up with a great solution, and you did, even if it is time consuming.  That zap-a-gap crazy glue sounds pretty cool, I will have to try and find some to add to the "adhesive collection."
So, you ended up using the size 011 o-ring as a spacer for the wheel/spider? If that seems to be creating too much drag, one of the hard PTFE o-rings would be pretty slippery.
Lloyd

[rsterne]

A size #010 would fit over the shaft but drag on it, so I chose the #011 as it is only a spacer.... There is still some free play vertically in the wheel, the only thing pressing the wheel up against the O-ring is the torsion spring inside the mag, which has almost no end force.... Friction doesn't seem to be an issue, once I got the proper clearance between the ends of the "teeth" in the wheel and the bump in the magazine that stops the pellets (I built it up too much and had to grind it down again).... but if I ever experience any sticking when the mag is down to 1 or 2 pellets (when the spring tension is the weakest), I will try your suggestion....

I couldn't function in my shop without a supply of ZAP and ZAP-A-GAP and the spray "ZIP-KICKER" (I hardly ever buy the thick one).... The thinner ZAP is a wicking type CA glue, you assemble the parts and put a tiny drop of glue on the edge and "ZAP" they are forever bonded together.... Both glues come with two applicators to control the amount of glue.... One is a piece of tiny poly tubing, with a bore of about 0.015" to deliver TINY drops of glue.... You don't need much !

Bob

[rsterne]

I see no reason that the same solution would not apply to fitting a .177 wheel inside a .25 cal MRod magazine body.... That would allow the use of the 24 gr. NOE .172 cal bullet in a .25 cal MRod receiver fitted with the TJ's 9" twist .172 cal barrel....

http://noebulletmolds.com/NV/product_info.php?cPath=102_576&products_id=5456

The 26 gr. NOE bullet is just a bit too long, however, at 0.493"....

Bob