Author Topic: Mistake and Surprise  (Read 4321 times)

Offline airiscool

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RE: Mistake and Surprise
« Reply #15 on: August 21, 2009, 12:29:49 AM »
Nope, this mount with only three clamping screws instead of the four your link shows.

http://www.pyramydair.com/s/a/Leapers_Accushot_1_Pc_Mount_w_30mm_Rings_Medium_3_8_Dovetail/828

For this scope,
http://www.pyramydair.com/s/a/Leapers_Accushot_3_12X44AO_Mini_Rifle_Scope_SWAT_Mil_Dot_Reticle_30mm_Tube/818

This is the mount I wrote about in another thread that the 10-32 stop pin snapped the end off in the reciever. The original stop pin hole in the Whisper reciever is 1/4 inch diameter and the 1/8 inch end of the Accushot mount's stop  pin can move in it. The pin end got levered over by the rear edge and snapped off at the lowest thread (stress/fracture point).
 
To eliminate that happening again I drilled out the 10-32 stop pin hole in the mount and threaded it for a 1/4 bolt. Cut the bolt off 1/8 inch into the shoulder so that there is a full 1/4 inch diameter of  'unthreaded' section that goes down into the 1/4 inch hole in the Whisper reciever.  So far, with the pin end the same diameter as the hole in the reciever it hasn't tried to 'egg' out the hole in the reciever like the small diameter pin did. And, the 1/4 inch pin in a 1/4 inch hole  has more contact surface area for the force to disperse over.  


Paul.
Benji Trail NPXL 1100, Gamo .22 Whisper, Crosman 760 Pumpmaster, Crosman 66 Powermaster, Crosman .22 revolver, Daisy model 102, Daisy early Model 25.