RWS Diana 45: Part 8

by Tom Gaylord
Writing as B.B. Pelletier

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

RWS Diana 45 air rifle
Diana 45 is a large breakbarrel spring rifle.

This report covers:

  • RWS Superdome pellets
  • Uh-oh!
  • RWS Hobby pellets
  • Air Arms Falcon pellets
  • Time to stop and think
  • H&N Baracuda Match pellets with 4.53mm head
  • Where we are

Today, we’ll look at the performance of the Diana 45 that we tuned recently. Although a new mainspring was installed, it has the same power as the spring that was in the rifle, so no vast power increase was anticipated. If there’s any increase at all, it will probably come from the new breech seal I installed. The old one was flat and hard, so the breech is probably sealing air better now.

The point of this tune was to eliminate as much vibration as we could. The rifle’s owner, Johnny Hill, did not like the buzz that came with every shot, and I told him that most or even all of that could be eliminated by tightening the tolerances inside the powerplant. At my request, he made a larger spring guide, and he buttoned the piston to take out as much vibration as possible.

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RWS Diana 45: Part 7

by Tom Gaylord
Writing as B.B. Pelletier

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

RWS Diana 45 air rifle
Diana 45 is a large breakbarrel spring rifle.

This report covers:

• Barrel must go on
• Piston into the tube
• Piston liner and cocking shoe go in
• Install the barrel
• Install the trigger
• Install the barreled action in the stock
• Quick function test

Barrel must go on
I’ll pick up where I left off in the last report. To assemble the parts, the barrel has to go on the spring tube. During disassembly, I’d noticed during that the breech seal was flattened and hard, so it was replaced before anything else was done. It’s just an o-ring with a steel spacer underneath, so the old one was pried out and a new one was pressed into the groove.

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RWS Diana 45: Part 6

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3
Part 4
Part 5

RWS Diana 45 air rifleDiana 45 is a large breakbarrel spring rifle.

This report covers:

• Piston head swaged
• Eliminate sloppy tolerances
• Buttons
• Tighter spring guide
• Remove all burrs
• Clean the spring tube
• Lube the spring tube
• Lube the piston, piston liner and mainspring
• Lube the leather piston seal
• Leave the trigger alone

Today, I’ll show you all the things that have been done to the Diana 45 parts; and I’ll clean, lubricate and assemble the rifle. This will be a long report, so I am breaking it into two parts — today and tomorrow.

Piston head swaged
Before we get to the job though, I was asked by one reader to show how the piston head is attached to the piston body. If you want to replace the leather piston seal, the piston head has to be removed – and that isn’t going to be easy, because it is mechanically swaged onto the piston body.

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RWS Diana 45: Part 5

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3
Part 4

Diana 45
Diana 45 is a large breakbarrel spring rifle.

This report covers:

• Remove the barrel
• Barrel off!
• Remove the piston
• Disassembly is complete
• One last look

We have a lot to cover today, so let’s get right to it. We left the Diana 45 with the mainspring out of the gun at the end of yesterday’s report. The only thing left in the disassembly is to remove the piston. Do not disassemble a gun if you’re not 100% certain you can put it back together again in safe working condition!

Remove the barrel
The piston will not come out of the gun until the cocking link that connects it to the underside of the barrel (for cocking) is removed. To do that, you must first separate the barrel from the spring tube. That step is easy on some breakbarrels, but not so easy with this 45. On most breakbarrels, you remove the pivot bolt from the action forks and the barrel separates from the spring tube. The Diana 45 has another step; and unless you follow it, the barrel will never come off the gun.

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RWS Diana 45: Part 4

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2
Part 3

Diana 45 left
Diana 45 is a large breakbarrel spring rifle.

This report covers:

• Remove the stock
• Action out!
• Action in mainspring compressor
• Trigger assembly is free
• Spring bent!
• Gun is dry
• The rest of the powerplant
• Last word

I’m changing things for this report just a bit. In part 3, I told you that I would do a 25-yard accuracy test next. I’ve decided to forego that step and start working on the tuneup, instead. Today, I’ll show how to disassemble a Diana 45. Make certain the rifle is uncocked before you begin. Do not disassemble a gun if you’re not 100% certain you can put it back together again in safe working condition!

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Hakim air rifle: Part 7

by Tom Gaylord
Writing as B.B. Pelletier

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

Hakim
Hakim is a large, heavy military trainer made in the 1950s by Anschütz.

This report covers:

• Bone-dry
• Synthetic piston seal
• Piston lube
• Mainspring lube
• Assembly
• Trigger adjustment
• Test-fire
• Eley Wasp pellets before
• Eley Wasp pellets after
• RWS Superpoint pellets before
• RWS Superpoint pellets after
• RWS Hobby pellets before
• RWS Hobby pellets after
• Evaluation

This has been a detailed look at a rare Hakim air rifle trainer that was made for the Egyptian army in 1954 by the German firm of Anschütz. In Part 6, I showed a detailed disassembly of the rifle that included solving a problem with a sticky screw. Today, I tell you how I lubricated the rifle’s action and how it performs after the lubrication.

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Hakim air rifle: Part 6

by Tom Gaylord, the Godfather of Airguns™
Writing as B.B. Pelletier

Part 1
Part 2
Part 3
Part 4
Part 5

Hakim
Hakim is a large, heavy military trainer made in the 1950s by Anschütz.

This report covers:

• A very complex air rifle
• Let’s get to it — removing the stock
• Barreled action out
• Trouble!
• Call Otho!
• What was wrong?
• Wow — that’s a lot of work!
• What I found

Today, we’ll take apart the Hakim air rifle and see exactly how this rifle is put together. As you’ll remember or gather from reading the past posts, this Hakim is in very good condition, but it’s also very buzzy when it fires. I wanted to find out why that is and to correct it if I can.

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