1377/22 --- Longer pump/air tube mods ?
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1377/22 --- Longer pump/air tube mods ?
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Topic: 1377/22 --- Longer pump/air tube mods ? (Read 2577 times))
Gertrude
"The man who complains about the way the ball bounces is likely to be the one who dropped it."
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Real Name: Ron
1377/22 --- Longer pump/air tube mods ?
«
on:
September 07, 2013, 12:31:18 PM »
I posted this over on the CAPOF, I know many of you here are on both sites, but not everyone is, so I thought I'd ask here too.
I have read so many threads that some of it starts to become a blurr in my mind lol !
I've seen where a few of the members here have fitted their 1377/22 carbine builds, with longer lower (air tubes), but I can't remember where I've seen it. I've searched a few different phrases and keywords to no avail.
I think there was 2 different types/lengths of longer airtubes,... but I can't remember what model guns they were from.
Any help ? and, Any comments on the pros vs. cons of this mod ?
It seems to me this would be a VERY Favorable mod, (at least for the 1377/22 carbine conversion crowd), resulting in less pumping,...
.... but it also seems that only a very few of you have done it. I wonder why that is ?
Can anyone offer some insight on this ?
Have you done it ? ... and with what parts ?
(part numbers and/or pics would be great too)
Thanks for any replies and education you can offer.
«
Last Edit: September 07, 2013, 01:25:38 PM by tri-5-ron
»
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Big Bore Bart
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Re: 1377/22 --- Longer pump/air tube mods ?
«
Reply #1 on:
September 07, 2013, 06:09:24 PM »
I believe that you are looking for Bob Sterne's Uber-pumper build. He has used both a 2100 pump system, and a 1400 pump tube. Search for Bob's awesome build threads.
Bart
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Oroville, CA
1377V2 FT P&V, custom steel breech
766V2 FT P&V, M-Rod style breech o-ring, pin probe, light springs, trigger work.
Custom 22 pumper. 2260 barrel, 13xx grip, FT P&V, side lever breech, 8" stroke pump
1971 Crosman 1400 O-ring piston, 13xx t-port, opened ports
1989 Crosman 2200 Magnum V3 in process of PCP conversion
1962 C180 (JC Higgens) .22 (needs a tube)
1972 C760 SC No mods, may be come a .22
2100 PCP conversion
.25 gen1 Mrod under reconstruction
1940's Atlas 10" lathe
kj
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Real Name: kj
Re: 1377/22 --- Longer pump/air tube mods ?
«
Reply #2 on:
September 08, 2013, 05:28:29 AM »
another idea to check is the 760. the one talked about r sterne is a good one , but there are more i believe.
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philippines
kjs custom gunstock carvings
gunstockcarvings.com
darren
Expert
Posts: 1154
Check the torque on the nut behind the but.
Re: 1377/22 --- Longer pump/air tube mods ?
«
Reply #3 on:
September 08, 2013, 07:18:46 AM »
Mr bob did it ron, I was just looking at it in the green forum, the one mod that really grabbed me was he made the valve longer by putting a spacer between the front and back halves of the valve, giving it a larger storage area.
Also if you can make an articulated linkage like on the izh 46 pistol it could make putting a high charge into that larger valve easier.......please stop me .....I am looking at my Sheridan and thinkin "well if I......."
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lodi california
Gertrude
"The man who complains about the way the ball bounces is likely to be the one who dropped it."
GTA Senior Contributor
Posts: 7465
Hey LOOK ! ... I got a BULLSEYE ! ! !
Real Name: Ron
Re: 1377/22 --- Longer pump/air tube mods ?
«
Reply #4 on:
September 08, 2013, 01:39:16 PM »
Thank You !
yes of course,...
Who else could it have been that would do a mod like this ?
Mr. Sterne,
You have always been 3 steps ahead of the game and you always contribute the most interesting and useful info I have ever seen here. I very much enjoy reading your posts, and seeing your projects.
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HEY ! CHECK THIS OUT >>> FIND A LOCAL SHOOTING FRIEND ON THE GTA MEMBERS MAP ! ! !
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Feel free to place your own marker on the map.
(for your own privacy, the marker should not be placed at your exact address). just place the marker within a few miles of your home.
USE YOUR GTA SCREEN NAME WHEN PLACING YOUR MAP MARKER...So when others find you on the map, they can send you a PM here through the forum.
kj
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Posts: 1415
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Real Name: kj
Re: 1377/22 --- Longer pump/air tube mods ?
«
Reply #5 on:
September 08, 2013, 02:51:28 PM »
that is a sweet rifle.
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philippines
kjs custom gunstock carvings
gunstockcarvings.com
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1377/22 --- Longer pump/air tube mods ?