The Beeman R10/HW 85: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

HW 85
Weihrauch HW 85.

Part 1
Part 2
Part 3
Part 4

A history of airguns

This report covers:

  • Premiers are best
  • By the triggerguard
  • Extended hold
  • Resting on the bag
  • Getting tired
  • Evaluation
  • Summary

Today will be something a little different. In the previous report reader Siraniko asked me why I changed my artillery hold when I moved from the 10-meter accuracy test to the 25 yard test. Reader GunFun1 picked up on that question and wondered how we would know which hold was best. That made sense, plus I enjoy shooting this rifle, so I promised to do another 25-yard test in which all I change is the hold. That’s what I’m doing today.

Premiers are best

Without question Crosman Premiers turned in the tightest group in that last test, so they were the only pellet I used for this test. I began the test with the same artillery hold I used in the last report — my off hand held under the middle of the cocking slot. No particular reason for holding it there last time, except the farther out I hold it the more stable the rifle seems. By that I mean that the crosshairs don’t dance all around the target. It makes the rifle easier to hold, which is as good a reason as any, I guess. read more


The Beeman R10/HW 85: Part 4

by Tom Gaylord
Writing as B.B. Pelletier

HW 85
Weihrauch HW 85.

Part 1
Part 2
Part 3

A history of airguns

This report covers:

  • Sight-in
  • The test
  • Crosman Premiers
  • JSB Exact Jumbo
  • POI shift!
  • RWS Superdomes
  • Evaluation
  • Summary

It took me a month, but today I’m back with the HW 85 to test the accuracy at 25 yards with a scope. In Part 3 I had a meltdown, turning in some of the worst groups I have ever published in this blog. I felt strongly that it was because I couldn’t see the front sight and today we will find out whether that was right.

I mounted a UTG 3-12X44 AO in 30mm BKL high rings. This scope is very clear and well-suited to the HW85’s power. The BKL mounts won’t slip even under recoil.

Sight-in

The scope was already zeroed from the Diana Stormrider test so sight-in went pretty fast. I started with two shots at 12 feet and then backed up to 25 yards for the test. read more


The Beeman R10/HW 85: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

HW 85
Weihrauch HW 85.

Part 1
Part 2

A history of airguns

This report covers:

  • The test
  • Beeman Kodiaks
  • Eye not up to par
  • RWS Superdome
  • JSB Exact Jumbo
  • Crosman Premiers
  • 25 yards
  • Summary

The test

Today is our first day of accuracy testing the HW85 and I’m going to do something different. I will start at 10 meters, using the open sights that came on the rifle I’m testing. But I will only shoot 5-shot groups. I’m not interested in the absolute accuracy at 10 meters because this rifle can shoot farther than that. Ten meters is too close to accuracy test a rifle like this and expect any degree of confidence, and today you will see why.

Naturally I’m shooting with the rifle rested on a sandbag. I’m using the artillery hold, because even though the rifle is super smooth, it still recoils forward a lot. I held my off hand forward, under the rear of the cocking slot. read more


The Beeman R10/HW 85: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

HW 85
Weihrauch HW 85.

Part 1

A history of airguns

This report covers:

  • Crosman Premiers
  • RWS Superdomes
  • H&N Baracuda Match with 5.51mm heads
  • Top speed?
  • Hobbys
  • Firing cycle
  • Cocking
  • Trigger pull
  • Evaluation so far

Today we learn how powerful this smooth-shooting .22-caliber HW85 is. You may remember from Part 1 that I bought this rifle because of its super-smooth tune. So, let’s get right to it.

Crosman Premiers

The first pellet to be tested was the 14.3-grain Crosman Premier. These loaded easily and averaged 678 f.p.s. The range went from 672 to 693 — a spread of 21 f.p.s. At the average velocity this pellet produces 14.6 foot pounds. This was so close to the “magic” velocity of 671 f.p.s., where the weight of the pellet in grains equals the muzzle energy in foot pounds. I mention that because it’s just a handy thing to know. read more


Beeman R8: Part 7

by Tom Gaylord
Writing as B.B. Pelletier

Rail Lock Compressor R8

The Beeman R8 looks like a baby R1.

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

A history of airguns

This report covers:

  • New mainspring
  • The compression chamber honing
  • The Rail Lock Compressor
  • Cleaning
  • Piston seal
  • Installed the new seal and mainspring
  • Back in the stock
  • Cocking effort
  • RWS Hobbys
  • RWS Superdomes
  • JSB Exact RS
  • Firing behavior
  • Conclusions so far

The new mainspring and piston seal Pyramyd Air sent for my R8 arrived and I installed them last Thursday. This will document how that installation went and look at the velocity results, plus the powerplant smoothness.

New mainspring

The new mainspring is made from better wire than the stock Weihrauch spring. Gene Salvino has reports of guns with up to 9,000 shots with this spring that have lost little velocity, if any, since installation.

I knew there would be a lot of interest in this mainspring, so I examined it carefully and also photographed it next to the existing spring. The new spring wire is silver colored, where the Weihrauch spring wire is a darker color. The new spring appears to be about one inch longer than the original, but I don’t think it has been scragged. read more


Beeman R8: Part 6

by Tom Gaylord
Writing as B.B. Pelletier

Rail Lock Compressor R8

The Beeman R8 looks like a baby R1.

Part 1
Part 2
Part 3
Part 4
Part 5

A history of airguns

This report covers:

  • Don’t over-lubricate
  • Rail Lock mainspring compressor
  • Degreasing
  • Lube the piston seal
  • Clean the mainspring
  • Finish the assembly
  • What is it like now?
  • Velocity test
  • Discussion

Last Friday’s report set us up for today. I was discussing “tuning” airguns before knowing how they performed. I didn’t do that with this rifle, but that discussion loosened up a lot of minds, and I got many suggestions of what to do with the R8. I wanted to disassemble it and remove most of the “special” grease I had applied, and then Gene Salvino of the Pyramyd Air tech department and I had a long conversation about what was happening with that rifle.

Don’t over-lubricate

Gene said it is very possible to put too much of that grease into a lower-powered spring gun. He said if you do that you’ll get exactly the result I got with the R8 — a reduction of several hundred feet per second in the velocity. read more


Beeman R8: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Rail Lock Compressor R8

The Beeman R8 looks like a baby R1.

Part 1
Part 2
Part 3
Part 4

A history of airguns

This report covers:

  • Clean and inspect
  • Little wear
  • Install the Rail Lock mainspring compressor
  • Now what?
  • Tip
  • When to take off the compressor
  • Finish threading the end cap
  • The trigger
  • It’s been modified!
  • Installing the trigger
  • Trigger tip
  • How does it feel?
  • RWS Hobbys
  • RWS Superdomes
  • JSB Exact RS
  • What happened?

Today I finish inspecting and cleaning the Beeman R8. I will then assemble it, lubricate it and test it with the same pellets I used before, so we can compare.

Clean and inspect

As I cleaned all the grease off the parts I inspected each of them. The piston and spring guide have not been altered. The mainspring is straight (test it by rolling on a flat surface) and fits the piston and spring guide reasonably well. There is some tolerance between the spring and both those parts, and if I were doing a top grade tune I would make a new spring guide, plus I would either shim the inside of the piston or find a mainspring that fits it closer. I’m not doing that today. read more