Pio1980
AK Member
Why bother? A little extra mass at the end of the barrel is good for stability.
Air Guns
- Thread starter Falstaff
- Start date
mfrench
Addicted Member
the use of a moderator on air guns,.... and why.
I live in a creek valley at the base of a mountain, and have a half round *bowl that is formed by the draws and canyons that come off that mountain above us. It is a nearly perfect half round bowl of terrain on that side; and, the other shoulder of this same canyon is a mere 200 yards away, and, probably 500' higher than we are as well. That bowl of terrain on the mountain above us has a very strong echoing characteristic about it. You get a reverb cycle of a few seconds until the echo totally settles out. It is such a strong echo that my neighbors dog constantly barked at itself, thinking that other dogs up on the hill were barking back at him. He did this every day, for years, until his passing.
Now, my Beeman PCP .22 has a bark of its own that resounds through at least three reverb cycles up there. It is very loud, and the hills don't let go of it for a few cycles.
So what, Mike, its just an air rifle,.... right?
The Beeman barks as loud as a powder burner. I feel that it is as loud as a rim-fire .22, or, perhaps as loud as the next size caliber powder burner. I would love for something to reduce that noise footprint.
*utilizing snow skiing terminology to describe this terrain feature.
I live in a creek valley at the base of a mountain, and have a half round *bowl that is formed by the draws and canyons that come off that mountain above us. It is a nearly perfect half round bowl of terrain on that side; and, the other shoulder of this same canyon is a mere 200 yards away, and, probably 500' higher than we are as well. That bowl of terrain on the mountain above us has a very strong echoing characteristic about it. You get a reverb cycle of a few seconds until the echo totally settles out. It is such a strong echo that my neighbors dog constantly barked at itself, thinking that other dogs up on the hill were barking back at him. He did this every day, for years, until his passing.
Now, my Beeman PCP .22 has a bark of its own that resounds through at least three reverb cycles up there. It is very loud, and the hills don't let go of it for a few cycles.
So what, Mike, its just an air rifle,.... right?
The Beeman barks as loud as a powder burner. I feel that it is as loud as a rim-fire .22, or, perhaps as loud as the next size caliber powder burner. I would love for something to reduce that noise footprint.
*utilizing snow skiing terminology to describe this terrain feature.
Bill S
Thread Killer
PCP noise is quite high. If your barrel end is threaded you can easily install a moderator which would make it mouse fart quiet. If not, you'd need to add a clamp on adapter on front of barrel.
Springer shooters don't need them and some are so hideously BIG they interfere with sight picture through a scope.
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Bill S
Thread Killer
Some are so huge they interfere with sight picture when you have a low profile scope and mount.
Bill S
Thread Killer
2 nice German springers right there.
Pio1980
AK Member
The other long guns are a Beeman/Webley C1 with the little Beeman scope, and an FWB standard sporter.
Pistols include a Beeman P1, an HW-70, and my father's Hy Score concentric.
mfrench
Addicted Member
The Beeman P17 and Q-Tip darts are popping more rodents! I got one of two that I found on opening the gen shed. The other one,.... its just a matter of time.
From my generator shed, and, from along the hinge line fold for a tilt-up roof.
From about 10 minutes ago. I popped it up closer to the top, about 4' higher. It fell to the floor on impact - dead on arrival.
A dead mouse in following pics. If that is offensive to you, then don't open the images.
The shot entered behind the right ear, and went almost all the way through the body. The cotton fletching end entered into the body cavity, and is no longer visible..
A Q-Tip dart is a typical Q-Tip, with cotton ends. It is cut into halves with nail clippers, and cut at a steep angle to create a point.
From my generator shed, and, from along the hinge line fold for a tilt-up roof.
From about 10 minutes ago. I popped it up closer to the top, about 4' higher. It fell to the floor on impact - dead on arrival.
A dead mouse in following pics. If that is offensive to you, then don't open the images.
The shot entered behind the right ear, and went almost all the way through the body. The cotton fletching end entered into the body cavity, and is no longer visible..
A Q-Tip dart is a typical Q-Tip, with cotton ends. It is cut into halves with nail clippers, and cut at a steep angle to create a point.
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mfrench
Addicted Member
So, I have this love-hate thing going with my Beeman Chief.
The list of isms is long, and, I'm a sucker for something that I feel that I can fix, or, otherwise endeavor to keep alive.
I've spent endless hours trying to fix the leaking valve; finally accomplished. It holds perfect pressure now.
My latest gripe is the pellet probe-bolt, and its o-ring seals that close off the breech on closing the bolt. They're are forever getting guillotined by the round barrel, and the flatteing out at the loading tray interface. It seems to be razor sharp there in some way, and I've tried to grind the area with my Dremel and tapered grinder bits, but as a manual file only, no motorized rotation. Nothing has worked, and, I'm far beyond all of my local sources in finding working rings.
Frustrated.
So, I've been thinking about getting the probe machined to accept o-rings of a more formidable size, but don't want to spend the buck$ on that.
Then, last night, it came to me, almost dreamlike,... my long long rime favorite hobbyist/crafting item, K&S Precision Metals, and its precision brass tubing.
The precision brass tubing is designed to be perfectly concentric from one size to the next, in either diameter sizing direction. By this, I mean that each piece of tubing fits perfectly within, or, over the other pieces in the collection. The fit is tight enough for perfect for solder sweat fitting, and, pressure applications.
I can't express well enough the amount of different projects that this stuff has been totally integral in designing.
So, this morning, with total confidence in what I was about to do, I set up my 1/2" portable drill, and clamped it to my work bench, to be used as an improv lathe, I chucked the 1/2" end of the bolt into the drill, and, with a high-speed Dremel and grinde bit, I reduced the area where the o-rings were slotted to fit, and, I ground it down to perfectly accommodate a sleeve of precision brass tubing. That tubings O.D. was an ideal match to the fit of the o-rings, a snug smooth contact. I pushed that tubing as far back as it would go, and epoxied it into place.
I then took the next size larger tubing, with an o.d. of .25", which is the perfect snug smooth fit to the entrance of the breech/end of pellet probe. That .25" [iece of tubing creates a step up tapering that fills that breech end to a perfect close.
Suddenly, its a lot more quiet, without the breech end blasting towards me. And that was an emanating sound source that really added a pronounced clap sound being so close to the valve.
I forgot to add,....
It passes the tissue test of laying a piece of tissue paper over the breech/bolt/probe area, and firing it off.
That piece of tissue stayed in place.
This is a win in my book!
The list of isms is long, and, I'm a sucker for something that I feel that I can fix, or, otherwise endeavor to keep alive.
I've spent endless hours trying to fix the leaking valve; finally accomplished. It holds perfect pressure now.
My latest gripe is the pellet probe-bolt, and its o-ring seals that close off the breech on closing the bolt. They're are forever getting guillotined by the round barrel, and the flatteing out at the loading tray interface. It seems to be razor sharp there in some way, and I've tried to grind the area with my Dremel and tapered grinder bits, but as a manual file only, no motorized rotation. Nothing has worked, and, I'm far beyond all of my local sources in finding working rings.
Frustrated.
So, I've been thinking about getting the probe machined to accept o-rings of a more formidable size, but don't want to spend the buck$ on that.
Then, last night, it came to me, almost dreamlike,... my long long rime favorite hobbyist/crafting item, K&S Precision Metals, and its precision brass tubing.
The precision brass tubing is designed to be perfectly concentric from one size to the next, in either diameter sizing direction. By this, I mean that each piece of tubing fits perfectly within, or, over the other pieces in the collection. The fit is tight enough for perfect for solder sweat fitting, and, pressure applications.
I can't express well enough the amount of different projects that this stuff has been totally integral in designing.
So, this morning, with total confidence in what I was about to do, I set up my 1/2" portable drill, and clamped it to my work bench, to be used as an improv lathe, I chucked the 1/2" end of the bolt into the drill, and, with a high-speed Dremel and grinde bit, I reduced the area where the o-rings were slotted to fit, and, I ground it down to perfectly accommodate a sleeve of precision brass tubing. That tubings O.D. was an ideal match to the fit of the o-rings, a snug smooth contact. I pushed that tubing as far back as it would go, and epoxied it into place.
I then took the next size larger tubing, with an o.d. of .25", which is the perfect snug smooth fit to the entrance of the breech/end of pellet probe. That .25" [iece of tubing creates a step up tapering that fills that breech end to a perfect close.
Suddenly, its a lot more quiet, without the breech end blasting towards me. And that was an emanating sound source that really added a pronounced clap sound being so close to the valve.
I forgot to add,....
It passes the tissue test of laying a piece of tissue paper over the breech/bolt/probe area, and firing it off.
That piece of tissue stayed in place.
This is a win in my book!
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usedto
Lunatic Member
My kids always want to get me something for Christmas. That might just do the trick. Lists for $229, can buy on the bay for $179.
dosmalo
T-Totaled
I pull these out when things get serious between me and the bushy tailed ones. Excellent accuracy with the Umarex.
70's Rockfan
Rough N Ready
I've had mine for a year. I'm still very pleased with it.
Bill S
Thread Killer
Well, your persistent, I'll give you that. Breech seal failure is a common source of loss of power and certainly a bad leade is generally one possible culprit. If you could get the barrel out, a slight tapering (1-3 deg) and polishing of the leade may have also fixed the problem but there are always at least 2 ways to skin a cat. Good job. Extending the bolt a bit also ensures proper seating of the pellet into the rifling lands. Good job.
usedto
Lunatic Member
I'm a fan of quite a few things that serve no useful purpose, but this is a bit of a stretch.
mfrench
Addicted Member
Persistence,...
Well, the scope started sighting in things around the corner, and sending out wild fliers.
It is a Leapers UTG Mini-SWAT 4-16x44 that I bought in mid-2018. It decided to lose any zeroing ability just as I thought that I might be getting close to finishing this thing out (my Beeman Chief).
So, i contacted Leapers, and they responded fantastically in regard to their lifetime warranty.
So, I sent the scope in, and they said, FUBAR'd.
Today, I contacted Bill Sanchez of Leapers, again, to see if there was any sort of diagnosis, and they said that they were sending out a new one today on warranty.
Great service on a mid-price scope. I'd recommend them again, based on this.
Bill S
Thread Killer
Leapers makes a decent air rifle scope. Springers are especially hard on scoped because of the dual recoil. It's rare to have one bust on a PCP rifle. Glad they took care of you.
