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N/A  Who shot their .177 today ?

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Double Moisture Filtering

I am using hill ec-3000 pump evo with dry pac pro to fill my revere and drs directly…
also I live in a super humid area ,
I think the only true way to tell if ur pcp tank is getting dry air is when u shoot and u don’t see any sneeze effect down the barrel end!!!!
which I don’t so that means i m okey.

Shoebox compressor leaking low cylinder

Never had that issue, because I always followed the directions on how to do it. It's all up on YouTube (as is pretty much anything you'd evver want to fix if you search for it). Since parts are no longer available for these wonderful little gems, it is important to do things right and not guess so you don't mess them up . . . .

These videos are of an older style, but they all work the same way - expect the black nut looks different since it does not have the auto lube system (that came later).

Cylinder removal:
Cylinder rebuilds:
I watched the video and decided since I had the cylinder already off to just go and rebuild it cleaned the check valve good and got all new o rings in it and Teflon tape I'm glad mine has the permanent ferrule on the air lines with the washer and o ring so you don't have to worry about the ferrule getting wore out and leaking.

Omega Turbocharger -Loud Pop

I was filling my small omega tank today and at almost 4500 psi I heard a loud pop ( scared the s--t out of me) and a wierd noise. Air was pumping out of one cylinder but the other cylinder was still woking. Closed the tank and turned off the compressor. Figured that it must be the burst disc and it was. Repalced it and cleaned the valves, tested it with a deadhead, filled my Huben to 300 bar, Everything worked ok.
I've had the compressor 3 1/2 years, 65 hours of use, first maintenance other than turning the grease ports.
Previously owned an Omega Supercharger - 5 1/2 years, 260 hours.
I’d imagine they fatigue after 3 1/2 years of holding back 300 bar.
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Air Venturi  Avenger Rail Adjustment Question

Appreciate it. I did tighten screw 4 down a slight bit so it wasn't holding the rail up... which has solved my issue. Still would be nice to know what that one does, but hasn't effected anything that I can see.

Scope is 1". Vortex Diamondback. I could go with different rings, but was JUST out of reach. Tightening the rails and #4 did the trick and now everything is dialed.

May have to upgrade the rails for him eventually but we're both happy with the way its working now.
Hi I just came across the thread now. If I'm right the "#4 screw" is a probe alignment screw. At least that's what it seemed to do on mine. Just turn it in till the probe goes into the center of the breech. This could also potentially help the probe orings last longer

Crosman  Crosman M-130 ,22 caliber


Crosman M-130 ,22 caliber.


Hello to all;


I was, browsing a local Gun show some years ago and came across a table that had a Crosman M-130 .22 caliber pump pellet pistol on the table with a sign that said; “It don’t Work” make me an offer!! I was on my way out and said what the hell; I offered the guy 15 bucks and he said, it’s yours!!!!


That’s how I came to own a M-130, fellow said he didn’t know much about the pistol, got it in a trade with other items, and had no use for it. The pistol was the second variant with the formed metal pump handle and self-cocking system made from 1955 -1970; the first variant had a pinned wood handle on the pump arm and wood grip panels 1953-1954. (The Model .137 was the .177 caliber).


The pistol itself had a rather utilitarian look, with an aluminum breech, sliding bolt with cover, 8-inch rifled barrel, weight about 1 ¼ lb. blued steel finish, OAL 11 inches. A bent square wire looking front site (part of the front tube plug) and a diminutive rear site, which at first glance seems to be installed backwards!! It does have minimum lateral windage adjustment no elevation adjustment and, push type safety on frame, sold for $9.95 new.


Personally, I was never a big fan of the self-cocking systems; some had a propensity for firing during pumping or otherwise unintentional discharges! I made a habit of never loading a self-cocker until after it was pumped up and pointed downrange!! I have a Model 140 rifle, well actually one of my Grandsons has it now, and I can say however, that I never had an unintentional discharge, but have read of such instances and do take the precautions mentioned above. These systems also had the negative effect of increasing trigger pull weight with each successive pump!


I have read the self-cocking system was developed because the factory had numerous returns on standard bolt cocking rifles for valve lock from over pumping? Maybe, I don’t really know, but the self-cockers with the blow off /dump valve system activated by the trigger were finally eliminated from Crosmans catalog after 1970.


Mine set in the safe until recently; I finally decided to rebuild the M-130 to see what it had to offer as I have also read they were really pretty weak shooters. None of the factory info I have seen, ever quoted any velocity figures, just stated 3-5 pumps for most normal shooting? Anyway, we will find out!


The rebuild was pretty uneventful, Original O-rings dried/hard, rubber pump seal hard and dried out, quad seal crumbling etc. after a thorough cleaning and replacement of all seals the pistol was reassembled, I gave it 4 pumps and fired, got a pop, at least it was working!! I set up the Chronograph and since the factory recommended 3-5 pumps, I started out with 3 pumps using RWS Hobby pellets 11.9 grains and got a whopping 243 fps! Went to 5 pumps and got 303 fps and this was what the factory recommended?? Eight pumps 325fps, and 10 pumps 339fps.


I don’t know if this pistol is representative of the velocities too expect from one of these units or if it is an anomaly, this one certainly falls in to the aforementioned “Weak Shooter” category!! - Others may have far superior results velocity wise than I was able to achieve?? I was expecting about 350-395 fps on 8-10 pumps, guess I was expecting too much!!


I decided to move on to accuracy testing using the same RWS pellets and set up at 25 feet using 8 pumps for all shots but before I do, some reflection on my part; and my remarks about the low velocity numbers on this unit. The M-130-137 pistols were introduced in 1953; this is just 8 short years after the end of WW II, “CHRONOGRAPHS WERE UNHEARD OF IN THAT TIME FRAME” except in the Military and some scientific circles, and certainly not in the general public!! I can sit now and spout velocity numbers with ease because I have a chronograph!!! This was just not that relevant back then, making a tin can roll or shooting minnows in a pond certainly was and the M-130 is certainly capable of that!!! What I am saying after a bit of reflection, is I believe I was a bit too critical of my M-130 and the velocity it achieved. In 1953 it would have been perfectly acceptable! One can’t realistically compare satisfactory results today with satisfactory results from 67 years ago as they are based on completely different expectations!!


I think some of us suffer from “Magnumitis” now and then, certainly, I do at times, and I believe my remarks on the velocity of my M-130 above is one example of it!!!! After all, the Crosman 130 series were in production for 15 years!!


Anyhow on to the accuracy test, using 8 pumps, with the target set at 25 feet I shot a 5 shot group of 4 into .750” center to center to center with a flyer bringing the 5 shot group to 1.230”, the flyer was actually my fault!! At this I point decided to try some Crosman 14.3 grain PMHP; 5 shot group results 1.175” center to center. The pistol is capable of ¾” – 1.00” groups at 25 ft.


The groups were low, but I did not want to risk bending the front sight, so I just aimed about an inch high! This pistol is certainly a capable close range plinker; as I think it was designed for! I would bet that those folks who owned these pistols 60+ years ago were glad to have them; and I am pleased to have this one in my collection!!


Garey



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Crosman  Help with 1977 pumpmaster 760

Yep. ^

They threw me as well. A set of wirecutters works well to gently pry those off. Do one side first, then push on the pin that goes all the way through.

Cheers,

J~
That's what I ended up doing after I read jimbentley's comment:
That is cap over the roll pin. It should just pop off.
Thank you both for the help
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N/A  HW77 vs Norica Spider GRS

Don't own the 77 (or any underlevers) but I do own a Norica Deadeye GRT .22. Nowhere near the fit/finish of anything HW/Beeman and yes I own a few of those, although all mine are break barrels.
The Norica would make a decent, inexpensive pesting rifle and if you have an itch to try one, buy one another day and when they're on sale, but it's not worth the $219.99 PA wants for it and the HW77 is a way better bet. Grab it while you can.
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N/A  Help with identifying this gun?

Looks like a custom crosman 2260 or something. Trigger looks different than a 2260/disco or even a QB78. Probably custom as well.

So it's probably a don cothran tube or similar. Is this HPA or bulk fill? Looks like bulk co2.
This is not made by anyone in the US. Definitely not Don or Crosman.

Impact 600 or 700 barrel for 300 yd shots with slugs

I have just become able to shoot 123 meters, which i think is around 140 yards, me only shooting .177 and coming from a comfortable 86 M / 92 yards it suddenly feel very far.
BUT ! i have put lead on the 123 M and it looked to be quite nice.

I have cut down a 700 mm standard FX barrel to be able to shoot heavier stuff ( 16 & 20 grain ) and it seem to work. ( able to push 20 grain past 1000 FPS )
Tomorrow i will try my Two at the new ranges and see how it like that.

The plan as always is to shoot my 2" targets, and play "annihilate the red base", the red base being the .22 or so small dot in the middle of the targets.

CUZ that is what matter to me, target size and not distance, so going up to 5 - 7 - 10 " targets even further away, that will not cut it for me, even if they are probably very hard to hit.

So by choice, my targets sizes are 2 and 3" or smaller, and that is what i will use going forward no matter how far i try to shoot.
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