Chinese B3 underlever: Part 8

by Tom Gaylord
Writing as B.B. Pelletier

B3
The B3 underlever from China.

Part 1
Part 2
Part 3
Part 4
Part 5
Part 6
Part 7

A history of airguns

This report covers:

  • The test
  • JSB Exact RS
  • RWS R10 pistol
  • Sig Match Ballistic Alloy
  • Discussion
  • Summary

Today I conduct the 25-yard accuracy test of the Chinese B3 underlever air rifle. Before shooting this particular B3 I had never shot any Chinese sporting spring rifle at this distance and I didn’t think there were any that could manage it.

The test

I read Part 6 to learn which pellets did best in the rifle. All shooting was off a rest, using the artillery hold. And I have to use the open sights on the rifle, as there is no easy way to mount a scope. Later B3s do have dovetails for scopes but this early one does not. read more


Build a good airgun library

by Tom Gaylord
Writing as B.B. Pelletier

A history of airguns

This report covers:

  • Diana 23 refinish project
  • What next?
  • An Airgunner’s library
  • Blue Book
  • Others?
  • Are there more?

Diana 23 refinish project

Yesterday, reader Errol asked me this.

“Hi B.B.
What happened to the Diana 23 that you were going to fit a new barrel, blue & tune up some time ago. Just happened to remember Sir.”Errol

He is referring to the Diana 23 I was refinishing for you. That came at the end of a performance test of the rifle where I even tested it out at 25 yards. It’s pretty accurate, if not very powerful.

Part 5 was published on July 2, 2015. For the next two weeks I worked on sanding down the metal even better than you see in Part 5. Then, on July 14, my wife Edith went into the hospital, and she passed away on July 26. I had other things on my mind for the next several months. When I looked at the project again I couldn’t decide whether I wanted to buff it as aggressively as I had once thought, or just blue it the way it was. read more


Umarex Forge combo: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3
Part 4

Forge
Umarex Forge.

This report covers:

  • The test
  • Trigger
  • The test
  • Accuracy — JSB Exact RS
  • Accuracy— JSB Exact Heavy
  • Accuracy— Crosman Premier Light
  • What next?
  • Final group
  • Evaluation
  • Summary

Today I complete the report on the Forge from Umarex. This is a breakbarrel rifle with a gas spring and … Well, you can read the past posts to catch up.

I’m running this test because the last time we looked at the Forge I felt the poor 4X32 scope that was provided with it might not have extracted all the accuracy the rifle can produce. I vowed to return and test it with a better scope and today the Force is mounted with the Aeon 8-32 AO scope with trajectory reticle, which is one of the best scopes I own. You can read about it here.

The test

This will be 10 shots with each pellet from a rested rifle at 25 yards. I started with the conventional artillery hold but soon discovered the Forge can be rested directly on the sandbag. I used the artillery hold in the last test, so that may make a difference today. read more


Air Venturi Dust Devils: Part 4

by Tom Gaylord
Writing as B.B. Pelletier

Dust Devil box
Air Venturi Dust Devils will hit the market in a few months.

Part 1
Part 2
Part 3

This report covers:

  • Initial tests
  • Accuracy
  • Velocity
  • Feeding reliability
  • Unplanned test at the NRA Show
  • Hard targets with a BB gun!
  • Simple test
  • Serious test
  • Summary

This report has awaited the launch of the Air Venturi Dust Devil BBs. That happened last week, so they are now available to purchase. If you are a fan of BB guns, you need some of these!

Initial tests

I was sent a sample of these novel new BBs when they were still in the pre-production stage. The first thing I noticed was the broad band around the middle. It obviously has something to do with manufacture, but I wondered what affect it would have on accuracy and velocity stability, so those were the things I tested first. read more


Chinese B3 underlever: Part 7

by Tom Gaylord
Writing as B.B. Pelletier

B3
The B3 underlever from China.

Part 1
Part 2
Part 3
Part 4
Part 5
Part 6

A history of airguns

This report covers:

  • Refresher
  • The test
  • Sig Match Ballistic Alloy
  • Sight adjustment
  • On a roll?
  • Air Arms Falcon
  • POI change
  • RWS R10
  • Best for last
  • JSB Exact RS
  • Summary

Today was day of learning, or perhaps I should say remembering, because today’s test of the Chinese B3 underlever took me back to my early days with spring-piston air rifles. I will explain as the report unfolds.

Refresher

I found this tired old air rifle in a pawn shop many months ago. In this series I have replaced the breech seal with a faucet washer, opened up the powerplant, lubricated the moving parts with Tune in a Tube and shot the rifle for accuracy. That was when I discovered how accurate this old Chinese underlever is. So I vowed to shoot it for accuracy once more, now that the powerplant has been tamed. read more


How airguns are made

by Tom Gaylord
Writing as B.B. Pelletier

This report covers:

  • The order-takers
  • Little Joe
  • Kartoffelwaffen
  • A gun of their own
  • Home grown
  • What about a great idea?
  • Huh?

Today I will address a question that has come up several times in recent times. How are airguns made? For a number of different reasons, I have been exposed to a lot of this over the past 25 years and today I would like to share it with you.

There are a number of different ways guns get made, so let’s give each of them a name to keep them separate. These are names I am dreaming up as I write. No one in the industry refers to them this way and most people don’t even think about it.

The order-takers

The order-takers approach other companies with catalogs of things they are able to make. Most of these things are already being made, but each year they will add a few new things to their catalog. read more


Beeman R9 with Vortek center-latching air piston: Part 4

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3

This report covers:

  • Important discovery!
  • Analysis
  • Setup
  • JSB Exact
  • Evaluation
  • Test restructure
  • Predator Polymag
  • H&N Field Target Trophy
  • H&N Baracuda
  • Crosman Premier
  • Benjamin Cylindrical
  • Velocity comparison
  • Retest of JSB Exacts
  • Cocking effort
  • Discussion
  • Going forward
  • Testing new designs

Today I will test the Vortek Center-Latching Air Piston in the Beeman R9, with the pressure set at 50 bar, which is 725.19 psi. This is the highest pressure to which I have set the unit, so today’s velocities should be the fastest we will see.

Important discovery!

Before we begin today’s test, a remark made by reader GunFun1 to the last report triggered some unplanned testing that revealed some surprising results. He was concerned by my remark that some spring-piston guns (and that is EXACTLY what this center latching unit is) need a “wake up” shot when they are first fired. I have seen this with perhaps half of the springers I have tested over the years. Here is what he asked me. read more