How to level a scope

by Tom Gaylord, a.k.a. B.B. Pelletier

This report covers:

• Why does a scope need to be leveled?
• Scopes cannot be leveled.
• A leveling solution.
• Bubble levels.
• What works
• What about a collimator?
• My moment of enlightenment.

I promised this report to blog reader Genghis Jan over half a year ago. Several times, I’ve started to write it and turned away, but today I’m seeing it through.

Why level a scope?
There are 2 reasons for leveling your scope. The first is psychological. If the reticle inside the scope appears to be slanted to one side when you mount it on your gun — and I am primarily talking about rifles today, although these principals apply to scoped pistols just as well — it’s disconcerting. The second reason for leveling a scope is to ensure the vertical adjustments move the strike of the rounds vertically, and the horizontal adjustment do the same. If the scope does not appear level, the adjustments will move the rounds off to one side or the other as they move up and down.

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Leapers UTG Accushot 2-7X44 Scout scope: Part 2

by Tom Gaylord, a.k.a. B.B. Pelletier

Part 1

UTG 2-7X44 Scout SWAT scope
Leapers UTG Accushot 2-7X44 Scout Scope is a remarkable sight!

I’m on the road today to Ohio to Pyramyd Air and the Flag City Toys That Shoot airgun show this coming Saturday. If you plan to be there, please stop by my table and introduce yourself.

And while I’m gone on this huge road trip (there’s more driving ahead before I return home), I would ask the veteran readers to help answer the questions posed by the newer readers. I will only have about 3 hours each evening to exercise, answer emails and write the next blog — and I usually get 150-200 emails a day.

Today, I’m testing the UTG 2-7X44 Scout SWAT scope for accuracy. It’s mounted on the Crosman MK-177 multi-pump pneumatic that I tested for you awhile back. So, I have the data on that rifle using open sights.

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Leapers UTG Accushot 2-7X44 Scout scope: Part 1

by Tom Gaylord, a.k.a. B.B. Pelletier

UTG 2-7X44 Scout SWAT scope
Leapers’ UTG Accushot 2-7X44 Scout Scope is a remarkable sight!

And now for something I really want to talk about – Leapers UTG Accushot 2-7X44 Scout SWAT scope. I’ve been watching this scope for a year, wondering how I could work it into the blog. Most air rifles have no need for a scout scope, so it was a challenge to find one that did. Finally, I quit wondering and decided this is such a fine scope that I’ll talk about it whether there’s a huge need for it or not.

What is a scout scope?
To understand the scout scope, you must first understand the scout rifle concept. A scout rifle is meant to be carried on long treks, away from normal transportation. In other words, a rifle you have to carry most of the time. Therefore, scout rifles are light weight — especially for their calibers, which are often large to take long-range shots or drop dangerous game.

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Why does the point of impact shift from one side to the other?

by Tom Gaylord, a.k.a. B.B. Pelletier

This report is for blog reader Roger, who has this problem, and also for RifledDNA, who says he has it, too. Fred DPRoNJ (Democratik Peoples Republik of New Jersey), also expressed interest in the topic. I suspect that hundreds of our readers, if not thousands, are curious. Why would a scope that shoots to the left of the aim point at 10 meters be dead-on at 20 meters and off to the right at 35 meters?

Here’s part of what Roger told us:
“This time I’ve scoped a S-410 and something strange is happening.
 For example: I zeroed the scope for 11m, thus the far zero would be around 44m. When shooting that distance although the elevation is fine the POI shift to right around 7cm.
 If I re-zero the scope in 44m and shot back to 11m, although the elevation is fine the POI shift to left around 4cm.”

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How does the power of a scope affect accuracy?

by Tom Gaylord, a.k.a. B.B. Pelletier

Today’s report is a guest blog from duskwight, our blog reader in Moscow. It’s a report of a test to determine if changing the power of a variable scope affects the potential for accuracy

If you’d like to write a guest post for this blog, please email me.

Over to you, duskwight.

How scope power affects accuracy
by duskwight

Hello, my airgunning friends! This is a report of a small test I performed recently to see if changing the power of a rifle scope affects the accuracy potential in any way. I guess the thing I’m testing is if you need to see the target as large as possible for aiming precision, or if you can be just as accurate when it appears smaller, because the crosshairs of your scope will still be in the same place.

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Scope dope — I hope! Part 5

by Tom Gaylord, a.k.a. B.B. Pelletier

Part 1
Part 2
Part 3
Part 4

This is an ongoing series about scope questions and issues. Blog reader David Enoch asked for it originally, but many other readers have jumped in since it began. Today, I’m going to give you some scope tips I’ve learned over the years.

Tom’s scope tips

1. Get good glass!
You can’t hit what you can’t see! The quality of the glass in the lenses; the coatings on the glass; and the perfection with which the optics were ground, finished and handled during production are all more important than superfluous features like illuminated reticles and mil dots.

I look for clarity in a scope long before I consider anything else. I’ve been known to select a 4x scope over a 4-16x just for this reason.

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TX200 Mark III: Part 6

by Tom Gaylord, a.k.a. B.B. Pelletier

Part 1
Part 2
Part 3
Part 4
Part 5

Air Arms TX200 MkIII air rifleBB’s TX200 Mark III.

This is my second trip to the rifle range to shoot the TX200 Mark III at 50 yards. Last time, I shot only heavy pellets; today, I’ll shoot the hopefully more-accurate lightweight pellets, plus one JSB medium-weight pellet that several blog readers have had success with.

I also shot the rifle laying across the sandbag, instead of in the long groove down the center. Several readers said that was the best way to rest the rifle directly on the bag.

TX 200 Mark III rested lengthways
When I tested the rifle last time with heavy pellets, this is how it laid on the sandbag.

TX 200 Mark III rested sideways
For most of today’s test, the rifle laid sideways on the bag.

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