Diana 27S: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

Diana 27S
Diana 27S.

Part 1
Part 2

A history of airguns

This report covers:

  • SHOT Show
  • Odd-sized breech seal
  • Grainger
  • Velocity with Air Arms Falcon pellets
  • Fooled around
  • WHAT!!!?
  • On with the test — JSB Exact Heavy
  • Chronograph error
  • Cocking
  • 27S
  • Cocking behavior
  • Firing behavior
  • RWS Hobby
  • Summary

SHOT Show

I’m at the SHOT Show today. Today is Media Day At The Range, so I’m looking at all the new airguns that are on the range in Boulder City. Yesterday I went to Sig Range Day, so tomorrow I will have a report on both events. The show opens on Tuesday, so the Wednesday blog will be my first report from there.

Today we look at the velocity of the Diana 27S we are testing. If you recall, in Part 2 the breech seal failed and I couldn’t test the rifle. I replaced the seal with a temporary leather one and the velocity jumped from the mid-300s to the high 600s. I said then that it was the largest velocity increase I have ever seen from just replacing a breech seal. I expected a gain of 60-80 f.p.s. Several readers made similar comments. read more


Air Arms Pro-Sport: Part 7

by Tom Gaylord
Writing as B.B. Pelletier

Pro-Sport
Air Arms Pro-Sport.

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

This report covers:

  • Disassembly
  • Rotate forward spring guide
  • The washers
  • Factory top hat
  • Last note
  • Assembly
  • Relubed
  • Gun back together
  • Velocity with RWS Hobbys
  • Velocity with Baracuda 5.50mm heads
  • Cocking effort
  • The question
  • Summary

Today we look at the Air Arms Pro-Sport with the Vortek PG3 tune kit installed at its most powerful setting. This test was suggested by reader Yogi in the comments to Part 5.

“To finish up the review, how about exploring the other 2 notches in the PG3 kit? Maybe one notch is full OEM power, second notch is the desired 12 foot-pounds, and the third one(the one you have it set on) is good for 10.5 foot-pounds.

This way you have a full report on the Pro-Sport AND the PG3 kit.”

I though that was a great idea. Unless I test it, who knows what the other notches will do? And also there are the two heavy washers that add weight to the piston and more tension to the mainspring. read more


Diana 27S: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Diana 27S
Diana 27S.

Part 1

A history of airguns

This report covers:

  • Velocity day
  • A happy accident
  • Breech seal
  • No problemo!
  • BB isn’t daunted
  • Problemo
  • BB has a backup
  • HOWEVER
  • What size are the seals?
  • What now?
  • Cocking effort
  • Trigger pull
  • Today’s report
  • Summary

Today is Part 2 of my test of the vintage Diana 27S. From the comments to Part 1 we learned that several of you own them, but you all seem to live in Europe and the UK. This model is very rare in the U.S. Today’s report is about a failure that turned out to be a huge success!

“Oh, oh! BB’s talking like Mr. Miyagi again! Better get out the rags and car wax!”

Velocity day

I normally test velocity on Day 2 and that is exactly what I intended to do. My guess was that a .177-caliber Diana 27 should shoot around 650 f.p.s. with lighter pellets when it’s in good condition. I put five drops of Crosman Pellgunoil down the air transfer port that is located behind the barrel when it’s closed and then I shot three shots to just spread the oil around. Normally I would cock and uncock the rifle to spread the oil, but we learned in Part 1 that the 27S has an anti-beartrap device that prevents uncocking except by firing. read more


What does the new year hold?

by Tom Gaylord
Writing as B.B. Pelletier

This report covers:

  • What the new year holds
  • Big bores
  • High-tech projectiles
  • Price point PCPs (PPP)
  • Basic features of a PPP
  • Things that are good to have
  • Kiss of death for a PPP
  • Horsepower wars over?
  • Optics
  • Electronics in scopes
  • Scope mounts
  • Air compressors
  • Replica airguns
  • A dual-power spring-piston breakbarrel
  • M16 replica
  • M1 Garand replica
  • Summary

Happy New Year! May 2020 be a year of vision for all of you!

What the new year holds

I know a lot of you are trying to peek behind the curtain, to see what’s coming down the line. Some writers will divulge things, but I won’t. I would rather wait and see how something is presented before I announce it to the world.

But that doesn’t mean I don’t know some of the things that are coming. Today I would like to share a glimpse into the coming year with some things I know and also the trends I see unfolding. Let’s go!

Big bores

The coming year will be a hot one for big bore airguns. Expect to see muzzle energy over 800 foot-pounds, and this year it will be in actual production guns — not those that have been held up for scrutiny but have never quite made it to production. read more


Gamo 126 single stroke pneumatic 10-meter target rifle: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Gamo 126
Gamo 126 single stroke pneumatic 10-meter target rifle.

Part 1

A history of airguns

This report covers:

  • RWS Basic
  • Sig Match Ballistic Alloy
  • RWS R10
  • Warmed up?
  • Second string of RWS Basics
  • Pump effort
  • Trigger pull
  • Discussion
  • Summary

Today is velocity day for the Gamo 126 target rifle we are testing. We learned a lot from the comments in Part 1 and I also learned a lot while researching the rifle for this report. Today we will see where this particular one is.

The Blue Book of Airguns said to expect a velocity of 590 f.p.s., but many owners say 550 is about as fast as they ever shoot and some even say less. The rifle also starts loosing velocity over time, so we should be able to assess the health of the gun I am testing right away. read more


Air Arms Pro-Sport: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Pro-Sport
Air Arms Pro-Sport.

Part 1
Part 2
Part 3
Part 4

This report covers:

  • The inspiration
  • The kit
  • Installing this kit
  • Disassembly
  • Examine the parts
  • Factory top hat
  • Install the PG3 mainspring/li>
  • Spring guides very tight!
  • Assemble the piston and spring
  • Compression chamber is buttoned
  • Finished assembly
  • Discussion
  • Cocking effort
  • Firing behavior
  • Velocity with Hobbys
  • Additional benefit
  • Velocity with H&N Baracuda
  • Summary

Today is the day, airgunners. This is the day we open the .22-caliber Air Arms Pro-Sport we are testing and install a Vortek PG3 tune kit. It’s a drop in one-for-one replacement powerplant kit that promises to lower the cocking effort of the rifle and smooth out the shot cycle. The power output is 12 foot-pounds in .22 caliber which would be a 11.9-grain RWS Hobby leaving the muzzle at 674 f.p.s. And someone says, “Gee, BB, don’t you know you’re not supposed to tune for LESS velocity?”

Yes, I do. And this is exactly what I want. Even if I only get 625 f.p.s. with the Hobbys it’s what I want. Because I’m going for smooth — not power. read more


Gamo Swarm Fusion 10X Gen II air rifle: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Gamo Swarm Fusion
Gamo Swarm Fusion 10X Gen II rifle.

Part 1

This report covers:

  • Well!
  • Another breakbarrel repeater
  • Easy loading
  • High velocity
  • Gamo Platinum PBA
  • Cocking is easy
  • Trigger adjustment
  • Trigger pull
  • RWS Hobby
  • RWS Superdome
  • H&N Baracuda Magnums
  • Gamo Platinum PBA — again
  • Pellet feeding
  • Summary

Well!

When I started the report on the Gamo Swarm Fusion 10X Gen II I didn’t know I was kicking a Texas fire ant mound! Part 1 of this report lead to a report on the history of Gamo, and that brought the show to a screeching stop! I won’t get into all that transpired, but you can read the comments if you are interested.

Another breakbarrel repeater

I’m not going to defend or criticize anyone in this report. All I’m doing is testing another breakbarrel repeater for power, accuracy and overall quality as it pertains to airgunning. With that in mind, let’s start the show. read more