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How to measure scope height?

I guess that I would have to ask:
If the scope is NOT optically centered, then would the video method be of any actual help?
For instance, if the crosshairs were well beyond optic center, up or down, then it would not be a true measurement, would it?
Kinda like measuring one-half of the scope tube and one-half of the barrel method, at least the SHOULD give a very close measurement.
I have used a flashlight to do the same thing (in a darkened area), shine the light through the scope at a piece of paper to 'extend' the crosshair, mark it with a pencil, then shoot the pellet like the video.

mike

Rusty Barreled HW97K?

Hello , I wanted to help with this rusty barrel thing. I actually cleaned up a 1873 model ,vand this is how I did it
Use a electro rust removal first. Non abrasive , and works only on rust , and does not remove any metal. Then to clean after get some fine steel wool and push it through the barrel with a spinning type cleaning rod.
Simply push a small wad of the steel wool just like a cleaning wad. Roll it into a tapered shape with fingers, and work it through the barrel over , and over until the desired shine is reached.
For the outside clean with steel wool , and then clean very well , and dry then use Van's gun blue. It does not smell , and works great. Oil the blue with 3 in one , or Remington oil.
I fixed this model 1873 barrel this way , and it came out beautiful, and shot great.
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FX  FX Panthera / Dynamic shooting in freezing weather

I have an FX Panthera 700 in .22. And I started to participate in NRL22 and PRS. I had some challenges with freezing weather here in Canada with -8 C. The AMP regulator got stuck at dropping at 8 bar from the set point and not regulating again after the next shot. Did the polishing of all components and dry lube the Belleville washers, but no improvement with the freezing weather. Once back in the shop with warmth, no problem. But a slight creep. I think that the indent in the X3-2 19696 Regulator piston caused this. So, I needed an upgrade and put in the Huma regulator. Installed the Huma and tried it again, shooting in freezing weather. But guess what? Again, the setpoint is regulating slowly from 8 to 9 bar up. I must admit that the Huma is better than the AMP when it is warm in the shop. But the regulator piston of the AMP regulator was worn....

So the question is, has anyone seen this before during freezing weather, where the regulator is slow or hesitant to regulate?

Hatsan  Hatsan .30 cal Carnivore died

To get it apart, a dummy pin yes. But not a press. With a dead Ram, getting it apart is simple. Installation, is where the press is needed. I know this is what you meant. Just want to clarify for the op. If you want to convert to a spring (I highly recommend) then you will need a heavy duty press. I built this one specifically for the 135. Then it can handle anything else.View attachment 526999View attachment 527000View attachment 527001
Thank you so much for this!

But can you please list the components you used to make this rig? Like what's the dimension of that threaded pipe and what's that, what appears to be a wrench/tube flange for a nut, honestly I have no idea what it is. Also what's the spacing in between the holes marked ABC... etc. on the board and in between the two rests. Any info on that would be much appreciated, or have you already posted these things somewhere and I've missed them completely?

Thanks for everything man, if anyone, I certainly appreciate your effort from the very bottom of my heart!

.177 JSB 10.03 ko's

I have used them on ground squirrels as low as 900fps and they work amazing. They are super accurate out of my Gamo Coyote, which is now slinging them right at 1000fps. I will be testing them soon in my Wildcat and Maverick, hoping for some decent accuracy. I have been buying them when on sale, they are excellent pesting ammo.
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N/A  scope problem turrent wont turn anymore!

I love the way God made us all different, but the same.

Indeed.

The speed/weight/trajectory thing is hardwired in our nervous system. It's what are brain was designed to do. From the first time our ancestors picked up a rock and threw it. The ones that could hit the mark survived.

We are just responding to human instinct. We are driven to sling sh!t out there at something. It's our duty as a homo sapien. Whether it's a ball, a bullet, an arrow or an old black rock.

We are all just a bunch of neanderthals with space age pellet rifles brought together by a slipping scope mount that shoots a foot to low. All to squeeze a drop of serotonin from the most primitive part of our brains.

Indeed He does work in mysterious ways.
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Do you Field Target in the snow?

Sucks to hear that. Do what you can when you can.
I shoot in the winter as long as the snow isn't too deep. I have been lucky this year, the snow was late to the party, and I was able to keep the ground targets in place a little longer. However, the snow is now deep on the forest floor, and I had remove the snow around them, or move to a higher location. Needless to say, I'm running on borrowed time on the f/t range. This will be the last week of F/T 2024/2025 When the snow is too much in the mts, I switch over to the desert for the rest of the winter. The older I get the colder I get. LOL.
I have been using hot hands hand warmers for years @ work and decided to give them a go while I shoot in the cold. I put them in a pair of fingerless gloves, on the top of my hands and that seemed to do the trick. There are usb rechargeable types that a friend uses while snowmobiling, he says thay are a game changer for keeping hands warm.
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N/A  Smallest/shortest nitro piston

the nitro piston is just a spring in the form of a shock absorber as you know and that still take the piston to give you the compressed air
i understand what you are trying to do but i think as you already know there will be no off the shelf part to make it happen
there have been a handful of NP pistols
Hatsan has made them and Benjamin makes one
now could it be done with it cut down maybe but it would be low power and the effort to do the R&D could be a losing battle
Pretty much. I was looking at the pneumatic struts/return systems (Softer than Spring(tm)) and thought... double the width of the piston, half the length, higher deltaP over D...

But yeah, the website I used to get parts from went defunct/bought out and now can't buy as aconsumer the small pistons, so I guess it's find someone else that sells them if I want to experiment.

Any issues with your GX CS4?

Keep a note pad with the compressor & log your run time. I'll bet not many of us have a run timer but you SHOULD keep track.
Every shooter should keep a notebook. Keep notes on your rifles/pistols and leave a page for the compressor. I just start a timer and record the run time. We all have a watch or a cellphone to time it.
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Air Venturi  Odd size o-ring question

Hi all,
Sorry in advance if this is too long a read, but I'm hoping for some advice...

I've been trying to fix a slow air leak in my Avenge-x .22 and not having much luck so far. I've replaced o-rings on the axle (they were brittle and flattened out) and replaced the dowty seal behind the fill pressure gage (and gently tightened that down). Although not as bad, there is still air escaping somewhere that I can't seem to locate with soapy water or silcone. Even though they look okay, I'll probably try replacing fill probe and air cylinder o-rings next before venturing deep into the receiver to replace 0-rings. For those interested, there are a couple of videos on YouTube by Shooter's den in Pakistan that give a very detailed and closeup view of how to completely tear down the Avenge-X. They're very helpful, especially if you use english translation closed captions!

Anyway, as I've been doing this, it occurred to me that I should probably build up a supply of spare o-rings for future repairs. I could buy a complete reseal kit for around $30-$40, or I could put together an order from a place like O-rings and More and get a lifetime supply at a fraction of the cost. I've ordered from them in the past. It's hard to beat a pack of 25 o-rings for pennies plus nominal shipping. I can also wait for Captain O-ring to start selling an Avenge-X reseal kit - an attractive option because Jon puts together a color coded sheet to go along with the color coded o-rings, making it so much easier to identify o-rings. But Jon tells me that kit is weeks away and I'm sure it'll also be in the $30+ range.

My question has to do with odd or non-standard 0-ring sizes and what to use if I can't get them. For example, nearly all the 0-rings needed for the Avenge-X are standard metric sizes (20 i.d. x 2 c.s., 4 x 1.5, 2.5 x 1.5, etc.) However, there are a few that aren't so standard. I'm referring to both the shematic drawing of the rifle from Pyramyd Air along with a parts list (partially in Chinese) that I found from Nova Vista. On that list, there are 0-rings such as 12.4 x 2.6, 2.4 x 1.8, 20.2 x 3.5, and one that's simply denoted as 10 (#69 on the schematic - any ideas what that is?). I can't find any 0-rings with these dimensions and I'm wondering if I can use the nearest standard size instead. So, for example, instead of 12.4 mm, use 12.5 mm; instead of 20.2 mm, use 20 mm; instead of 1.8 mm, use 2mm. What do you think?

Also, a few of the 0-rings listed do not specify the hardness (Buna 70 or 90). In cases like that, which do you go with?

Thank you for any help you can offer with this!
Mike
Go to AliExpress and buy the various o'ring collections. 1.9, 1.5, 2.0, 3.1. You will end up with what you need 95% (or more) of the time. O'ring sets specific to a gun are way over priced and useful usually only for that gun. I also bought both rubber and silicon o'rings because you just can't have too many o'rings when dealing with air guns.

-- Matt
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Airgun Technologies  Uragan 2 177 vs vulcan 3 177

Best bet is to contact Derrick Wall zx10wall a member here. Derrick handles and services both those brands and is very informative about the pros and cons of each brand. Good Luck

Joe
Thanks for the tip as well!. I have a Vulcan 3 on 22 cal and may look up Derrick's services.

Winters' Winds - the ultimate master of the cold pellets fate

This winter started off mild but the blizzard dropped some ice and then snow and the wind during the storm was awful. Despite that I connected with a high percentage on the HOSPs and assorted trash/pest birds. I have always liked the 34 grain JSBs but the .25 Hades is not bad in the wind either. As pellets go ;). Shooting through a cross wind is the challenge when it is gusting, hard to decide on a hold. Out to about 25 yards in 20 gusting 30 I hold on the bird. Beyond that I start to lean into the wind.

HOSPs are imported invasive English House Sparrows. They are as destructive as are starlings. Sparrows decimate bluebirds and starlings decimate purple martins. Both I understand were brought in by some deviant so as to make sure all of the birds mentioned in Shakespeare plays were represented in America. Thanks, I do not even like Shakespeare and I definitely do not like his birds but my JSBs do! There are many native sparrows and many native birds that look like a sparrow but the only ones I shoot are the English imported house sparrow, they are not protected. I am pretty good at identifying them by sight, sometimes the females are easy to confuse with a native finch and in such case I just pass on the shot. But the bull HOSPs are easy to identify and a challenging target compounded by the cold and wintery winds.
Thanks for the info. When I get settled in I’m going to do some research so I don’t start picking off finches.

collector, enthusiast, hoarder or just obsessed?

Yes to all three, but I'm losing it. There are fewer and fewer places to shoot. If you own a lot of land (I've owned parcels as big as 477 acres), you're stuck with all the maintenance, which does not appeal to me at 69 y/o. On smaller parcels, there are more and more municipal rules, HOA rules, and subdivision rules.
it is getting more and more difficult to sell, ship or receIve payment for anything gun related PB's and now even airguns.
I owned mid to high priced airguns since 1997. Hearing all the talk about budget guns and wanting something to tweak around with in winter, I bought an Umarex Notos, Gamo Urban and AirVenturi Avenger, all in .22.
I was really impressed an wonder if I wasted all my money on those higher priced guns, especially since even if like new they can hardly be sold unless you are willing to lose 50%+

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do what a lot of people do here. post them in the classifieds for 90% of their retail and wait for months until you get a bite 😂

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