$20.00
How to make a dog laugh
- Condition:
- Make:a book by Samuel B. Mann
- Model:'LIGHT AT THE START OF THE TUNNEL - Are rifle scopes off the rails?'
Private User
| Seller Type: | Private User Licence # 431-725-90B |
|---|---|
| Location: | ESSENDON NORTH, VIC, 3041 |
| Phone #: | *** click to reveal *** |
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Description:
How can we know what happens inside our scopes when we shoot? Isaac Newton (inventer of the riflescope and master physicist) would have known had he envisaged how today’s scopes are designed.
In the parlance of his time, he would probably have said it would make a dog laugh.
Why? Well, have you seen the YouTubes of scopes flexing under recoil? If not, search those words and you soon will. One by ‘Bob is the Oil Guy’ shows the scope on a big tactical rifle dipping at the objective and the back of its picatinny lifting. These things happen not just once but two or three times from one shot.
We can only see this process because the rifle is so straight and heavy that it does not rise off the bench,
Another video shows that scopes flex even on smaller calibres like the 6.5 Creedmore.
Imagine what the erector tube is doing in those scopes. It’s not held by solid, steel rings but by a gimbal or ball-joint at the back and usually just a flat spring or two at the front. A stronger spring might just hold it in place on smaller calibres but on big ones the erector tube will still break loose. Then, any damage from the second pulse of recoil reversing the tube’s travel will be added to by the heavier spring whacking it back against the turret screws.
Those returns to battery may not even be simultaneous. The repeated external ructions shown in Bob’s video may translate as a drum roll inside, but so quick the report will drown it out.
. . . And all that even on a tactical rifle with no drop at heel. How much worse might it be on a lighter big-game rifle, perhaps one where bad mounting has left erector springs stressed laterally?
'LIGHT AT THE START OF THE TUNNEL - Are rifle scopes off the rails?' and its additional pages go deep into matters like this, suggesting that maybe it's time we all looked back, if not to 1690, at least to Germany around 1974.
Despite recent and projected postage rises, the price is still $24.30 posted, with 24 additional pages sent by email; or enhanced versions $35-$45.
The second image here shows a digital representation of the cover with drawn reticle ($45).
