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Huben Any issues or problems with Huben gk1 please share your experience
- By WobblyHand
- Air Pistols
- 554 Replies
There's different ways to measure o-rings. Some places use the OD, others the ID. Take the OEM and place it in the center of the 4.5x1. It seems like it will just fit. Can you confirm that? If you have calipers, or a mm scale, can you estimate the ID of the 4.5x1 o-ring? Is it oh, 4.5mm ID?GK1 manual shows brass screw oring (#59) as 4.5x1mm (https://www.hubenairguns.shop/colle...en-spare-parts-for-gk1?variant=47416272224588).
I bought some from oringsandmore.com and they're WAY too big. I end up using a 2.5x1.5mm with sanded down OD to fit. Gun holds air now but the brass doesn't go in all the way because the oring is still a little big. Anyone else run into this?
So what you need might be a 4.5mm OD, and 1mm CS o-ring, but you ordered a 4.5mm ID x 1mm o-ring. To convert to ID based, that would be
4.5mm OD - 2 o-ring thicknesses (1) = 4.5-2 = 2.5mm ID x 1mm.
The 2.5mm ID x 1.5 is too big, since it's OD is 2.5mm (ID) + 2 o-ring thicknesses (1.5) = 2.5 + 2x1.5 = 5.5mm.
Based on this, I'd say you need to find/buy 2.5mm ID x 1mm o-rings.
Here's a link for some. https://www.oringsandmore.com/fkm-o-ring-2-5-x-1mm-minimum-25-pcs/
Alternative for BOG (Caldwell) fieldpod V's?
- By MartinT
- All Other Equipment
- 8 Replies
I had a can of Plasti dip in my inventory, and the end result is pretty acceptable!
Before dipping I filled the missing pieces (mostly at the corner edges) with some Playdoh like clay and let that dry for a day.
Before, hard brittle plastic.............................and after Plasti dip treatment, nice rubberised surface
Before dipping I filled the missing pieces (mostly at the corner edges) with some Playdoh like clay and let that dry for a day.
Before, hard brittle plastic.............................and after Plasti dip treatment, nice rubberised surface
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Scrap material rifle rest V2, pictures.
- General Discussion
- 5 Replies
Just (almost) finished my odds & ends rifle rest V2. All that's left is to apply carpeting to where the butt stock rests, but the rifle is halfway to California, and I need to set it in the rest so the fit is right.
Rest V1 IMO, was pretty ugly with all the extra holes from repositioning parts, the rear rest was too tall/thick to get good positioning on the rifle, and the solid wood feet added a bit too much weight.
I had plenty of scrap materials for a complete rebuild, plus I'd found some 2" pvc pipe that I thought would work better, since the angles of the rest made the feet sit on the edges, not flat. The pvc works great on the front feet, jury's still out on the rear (height adjustable) feet.
I also bought some self adhesive rubber, slip-resistant furniture foot pads so the pvc stays put on the shooting table.
V2 is much lighter than V1, and seems that once I'm in position with a rifle, fairly steady. It's not perfect, but you can only expect so much from a backyard hack with scrap materials
Rest V1 IMO, was pretty ugly with all the extra holes from repositioning parts, the rear rest was too tall/thick to get good positioning on the rifle, and the solid wood feet added a bit too much weight.
I had plenty of scrap materials for a complete rebuild, plus I'd found some 2" pvc pipe that I thought would work better, since the angles of the rest made the feet sit on the edges, not flat. The pvc works great on the front feet, jury's still out on the rear (height adjustable) feet.
I also bought some self adhesive rubber, slip-resistant furniture foot pads so the pvc stays put on the shooting table.
V2 is much lighter than V1, and seems that once I'm in position with a rifle, fairly steady. It's not perfect, but you can only expect so much from a backyard hack with scrap materials
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HW/Weihrauch Beeman 77 MK1 ball detent fixed
- Traditional Airguns
- 21 Replies
Invaluable information 
Glad to see it worked such a treat.
I never would have guessed that it would require so little spring pressure to secure the lever.
Congrats!
Glad to see it worked such a treat.
I never would have guessed that it would require so little spring pressure to secure the lever.
Congrats!
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HW/Weihrauch Beeman 77 MK1 ball detent fixed
- By Mycapt65
- Traditional Airguns
- 21 Replies
My McMaster Carr order came today. I ordered a narrow blade chisel and three press fit ball detents to fix the 77. I skipped re staking the OE spring and ball and took the easy way out. They all fit barely but only the one with the lightest spring force worked well. So well in fact it's nicer to shoot than ever. I circled the part number that worked. The two pictured loose were too stiff. The one that worked looks like those but half as long. Installation couldn't have been easier. I knocked them in with the aluminum bushing and a small hammer.
I love it when there's a simple repair. It's even better when it works better than before.
Be well all.
Ron
I love it when there's a simple repair. It's even better when it works better than before.
Be well all.
Ron
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Jts dead center pellets
- By gendoc
- Projectiles
- 13 Replies
i tried the JTS and AEA 29.?? gr in my crown MKII .25 running around 900fps and the crown didnt like them at all.
it prefers the H&N Baracuda 30.86gr as well as the JSB 33.95gr from its 380mm barrel.
as with any pellet for any airgun, you need to try them for yourself.
it prefers the H&N Baracuda 30.86gr as well as the JSB 33.95gr from its 380mm barrel.
as with any pellet for any airgun, you need to try them for yourself.
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