My Anschutz 8002 -16J Modded (Belgium)

[guido54]

At the next Euro's in weston park 20 and 21 september I'm there
For them who are interested You can see, feel, shoot, talk and discus about my Anschutz


regards, guido

[Steve]

I'll be at the Euros.look forward to seeing you and your gun,the external power adjuster looks interesting.

[Jon]

Got my one day ticket for Weston Monday, need another for Sunday.

You might see the second 9003 in the world there from Sept 2005 untouched until sold earlier this year, not even the power and still on original reg o rings I put in 2005.
If theyre set right they don't move.Power adjuster needs locking down same with P800 or face inconsistency.

Drill down, I eccentrically bore em out maximising available metal and mod the S1 and S2 valve with new spring guide, spring, valve and valve block remachine.
S1 valve block can be converted to a modded S2.

See what you have done and made adaptor in two parts o ring seals off the reg retainer M5 screw which was my stock fixing by the way, with end plug and o ring against back face. Done a proto one piece at first with original o ring separation, still got it.

The way you have done it makes it a ball ache to setup and retain consistency, usually they don't go together. Far from just setting reg so can get the power, you would infinitely have to strip down, adjust reg pressure, re assemble and see what happens endlessly well perhaps 20 to 30 times when figured out what affects what.

This is way more than a so called blueprint. That's the beauty of the Welham and my way of doing them.

[guido54]

Nice, hope to see You on Sunday and have chat about conversions. I'm sure that there is more than one road that goes to Rome

My power adjuster has also a hole with rubber piece in it that blocks the power adjuster (is not to see on picture)

I startet with reg pressure at 80 bar, Could get easely 12 fpe but set at 85 bar there was les tension needed on the hammerspring what I prefere. So I only needed 2 tripdowns
With reg set at 85 bar I get easely 100 shots and I don't feel the need to search for more.

The only problem I have is that between cold (12°C) and hot (30°C) I have power changes. Have to figure that out this winter.

To prevend zeroshift, I made also a piece so that the action only touch the stock at one place and makes barrel and air cillinder free floting

Regards, guido

[Jon]

Used to do the Walthers like that in to RN10 stocks.
Its how the ancient 2002, 2020, 2025, current 8001 and 8002 are fixed some move zero some not noticed.

Far better off the front block nice solid flat area incorporating the barrel. Backend will move but who cares. Guarantee no zero shift as proved countless times for fun.

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Also just as easy to make a decent stock rather than replace the shameful plastic grip and cheek plus it will be bedded in right.

Used it from Oct 2005 to December 2006 like this bedded in off front block only.

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Could be any of three reasons why velocity is moving reg could be collapsing, springs stacked wrong or valve material no good, you haven't changed the knock open valve a known problem even in the 90's 2002 and also the hammer tension, that's 5.
Above stable from -6 to 94 degrees within 2ft/sec rain, sleet or shine all year round untouched since September 2005 still on original o rings I put in and no adjustment of velocity needed. Above 94 degrees it used to gain approx. 6ft/sec, maybe the chrono? Thats where the setup comes in no good just setting reg pressure knowing can get the power that's a recipe for disaster seen so often.

[guido54]

Located the reason for speed rising at high temperature ( 14 ft/s) by using an hot air blower
It's not the chrono, not the regulator, not the valve but the hammer / hammerspring.
Does annyone nows if the hammer needs oiling or grease, mine has a little anschutz grease on it.



regards, guido

[Delphinus]

All PCP must have no grease in the hammer, if the rifle frequently gets water to prevent the hammer from rust you can use a dry lube for bicycle chain that uses wax and after it dries wipe it.

[Jon]

Put the action in a freezer until white over. Should take 3 shots to stabilise.
Also hot cylinder in to cold action and vice versa.
Then warm the lot up, should be no difference until around -6 to 94 degrees.

Power adjuster wont do that, its captivated and locked down no need to touch for years.

If its a well used action the hammer will wear a notch through the anodising and aid clearance, too much clearance hammer pushes up and wont be too long before the trigger top sear engages. More so running high volume, low pressure and high hammer tension like you are.

Finish the job off, new spring, spring guide and knock open valve, job sorted to a degree. Cmon you've only got a few days.

[guido54]

No need of that all Jon, the rifle is OK as she is now
This winter after the competions I will strip the rifle and look if there is something that can be improved.
For now, just a quick speed check before the match and than enjoy the game and go for it!


Regards, guido

[Jon]

For how long, hope it don't warm up or cool off.