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FX FX Maverick - loose barrel
- By Normkel
- PCP Airguns
- 9 Replies
Join the club. We're thinking of starting a club with shirts, but no one knows how to spell idiot. Oh, wait? Is that right?
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Other Shoot openings in windows
- By Bigragu
- PCP Airguns
- 12 Replies
Hey all, I recently tidied up my work bench to make it a dedicated pcp/gun work station and would like some ideas on a flap open window opening on the screen. Over the years here on AGN I’ve seen some genius designs but never saved any pics. If you don’t mind sharing some designs I’d like to benefit from you all’s ideas that have made trick flap or slide open window openings preferably on the screen side
Thanks a bunch, as always
Pics of my work bench:
Thanks a bunch, as always
Pics of my work bench:
Steyr Steyr Hunting 5A
- By Racing
- PCP Airguns
- 16 Replies
Right. So back to business, and.. issues.
Took the stock hammer to the scale again and the thing comes all in at just shy of 21 grams. That is, i relative terms, very light and what´s more... i came to measure the stroke on that thing which comes all in at a mere 9 millimeters.
Now.
Couple that with the port dimensions on the valve assy as well as transfer ports and what not and you soon enough realize that this Steyr was never designed to go beyond them 40J max their referenced to. Stroke kept short to make the auto reload come simpler.
9 millimeters.
Sitting there with the main block in hand and playing around with the action, that ain´t much to get things going. I realize that as much as the next guy, but hey...!
Problems... there´s a solution. There always is.
So i took to turning a new hammer spring end plug. The brass one next to the stock offering there in the pic. In turn i turned a brass sorts of hammer weight/spring guide and this took the total hammer package to a more usable 34 grams.
Yes.
The semi auto function will now by certainty be off and will need to be "retuned" to work as intended.
The thread on them plugs.. M20*1. The adjuster in turn M10*1.
Already as is out of the box i´ve concluded that the hammer is to be worked such that you to a degree control how violent the recharge is by altering sear tension. In turn on the inside of the stock end plug there´s yet an o-ring carved into it, this to work as a "bump stop" i presume if all fails.
Ditto the other end, the hammer comes sorts of down over the poppet head and the final touch is an o-ring set on the valve housing to work, again, as a sorts of bump stop.
Right.
Now. Hammer movement is controlled by two sorts of guides running the outside of the main block/receiver and the thing is setup NOT to bottom these out.
I need more hammer stroke, as well as a stronger hammer spring. Going to look into that tomorrow.. got a vendor for springs here in town (more to the point a manufacturer of actually)
So.
Add stroke. Yes. First up material can be added to the hammer at the sear junction. There´s a full three millimeters to be had right there. Next up though is a new end plug, like the brass one in the picture just out of steel instead.
M20*1 remember? Right. Hammer in turn is on 18mm diameter, which such a case scenario doesn´t leave all that much "meat" to play with.
However.
As i will in essence "elongate" the hammer in as much that i´ll set the sear point further in on it i can no doubt reduce the diameter "rearwards", to great benefit as that´ll let me have the hammer protrude into that longer hammer spring end plug. Cause, say i turn the end of the hammer down to 15mm dia.. that´s a different story and from my calculations...
Them 9mm and add the 3mm on the sear point. That´s 12mm total.
Now let the hammer protrude into the hammer spring end plug, and that´s an easy 6-8mm more. In other words a total of between 18-20mm and at THAT rate it´s an entirely different ballgame!
That should present an entirely different field to play in, and at that rate we can start talking how to alter performance for this unit for real.
As i visit the spring man come tomorrow i´m going to ask them for a number of different options. Mainly to cover as many bases as i can get away with here for starters.
Btw. Yes. Them "hammer guides" running the outside of the receiver, there´s ample movement "in reserve" on those things. In turn i´ve also played around with the thought of elongating them tracks on the Bridgeport of mine. Not the end of the world as i see it.
But no Sir. This was NOT "just" about opening up a few ports and letting her rip! A rather far cry from that actually.
So.
Down the rabbit hole we go gents!
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