How does a scope work?

by B.B. Pelletier

Before we start, a little announcement. Many of you are already aware of this, but Pyramyd Air has purchased the assets of Compasseco, a Kentucky-based airgun dealership with strong ties to Chinese airguns. In fact, Compasseco could be said to be the company that helped guide Chinese airgun makers into the modern American airgun market.

Pyramyd Air plans on keeping the Compasseco warehouse for the foreseeable future, and they plan on continuing the sales and support of Compasseco-branded guns, especially those under the Tech Force brand name. Now, on to today’s report.

I wanted to subtitle this report “A look at the inside” because today I’m going to show you the inside of most scopes. It just happens to be on the outside of the scope I just mounted on my .43 Spanish Remington Rolling Block rifle, which affords me an excellent opportunity to show you how scope adjustments work.

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BKL rings – Part 3

by B.B. Pelletier

Part 2
Part 1


The BKL 260 mount we’ve been testing.

This test has taken an inordinate amount of time, primarily because of my illness and some other pressing matters. We’re testing the BKL 260 mount to determine if its clamping pressure is good enough to prevent movement under recoil without a positive recoil stop.

In the last report, I tested the mount on a Hammerli Razor, a standard sporter spring rifle, and it held up fine. Over 500 shots later, it didn’t move. I’d planned to do a similar test on a Webley Patriot, which is the same as a Beeman Kodiak, but as the test drew near I decided that 500 shots were unnecessary — 100 shots would be sufficient. The Patriot/Kodiak is a spring-powered jackhammer that will move or break a scope in very few shots. Today’s test will demonstrate that. Mac switched the scope from the Hammerli Razor to the Webley Patriot generously provided by AirForce Airguns owner John McCaslin. Though this is a .177 caliber rifle, it still has all of the heavy recoil characteristics of the type.

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