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GTA
»
All Springer/NP/PCP Air Gun Discussion General
»
"Bob and Lloyds Workshop"
(Moderators:
Rocker1
,
ezman604
,
amb5500c
) »
New 2260/2560 on HPA
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Topic: New 2260/2560 on HPA (Read 10160 times))
rsterne
Member 2000+fps Club
GTA Senior Contributor
Posts: 27130
GTA Forums Person of the Year 2017
Real Name: Bob
Re: New 2260/2560 on HPA
«
Reply #20 on:
April 26, 2012, 01:02:29 AM »
There are a lot of other minor differences between the guns besides just the throat diameter.... The valve stem diameter, and the valve exhaust port diameter, for example.... In both cases, the area of the valve throat less the stem is larger than the exhaust port, so I doubt that has a significant effect on the outcome.... I wasn't trying to duplicate every single dimension in both guns, I don't even know if that is possible.... The bottom line is that they produce VERY similar results....
Bob
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Coalmont, BC, Canada
The only thing necessary for the triumph of evil is for good men to do nothing.
Stand up for what you believe in, my friends!
TimmyMac1
Expert
Posts: 1793
"You've Come A Long Way BB"
Re: New 2260/2560 on HPA
«
Reply #21 on:
April 26, 2012, 12:44:18 PM »
Nice job Bob. UIt is very difficult to get two guns to do the same exact same thing. Mechanical devices have a way of doing that.
Your about ready to build from scratch or at least get some 4130 and start bldg your own bottoms completely.
Keep up the good work.
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"No Guns Would be a Riot"
rsterne
Member 2000+fps Club
GTA Senior Contributor
Posts: 27130
GTA Forums Person of the Year 2017
Real Name: Bob
Re: New 2260/2560 on HPA
«
Reply #22 on:
April 26, 2012, 01:25:27 PM »
Been there
done
doing that.... check out my Hayabusa project.... started over a year ago....
http://www.gatewaytoairguns.org/GTA/index.php/topic,9588.0.html
It's a work still in progress, and I'm learning from it every time I work on it.... Eventually (now that my barrels are here) there will be .308, 9mm, .457, and even a .410 shotgun version.... Some will be regulated, some not.... and I'm guessing it will take another couple of years to complete.... (is a project like this EVER complete?)....
Bob
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Coalmont, BC, Canada
The only thing necessary for the triumph of evil is for good men to do nothing.
Stand up for what you believe in, my friends!
grumpy
GTA Senior Contributor
Posts: 2261
Real Name: David
Re: New 2260/2560 on HPA
«
Reply #23 on:
May 13, 2012, 03:04:22 PM »
Awesome work Bob. If only you sold one of your works....... I would buy one for sure !!!!
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SE Michigan
MustangMike
GTA Senior Contributor
Posts: 6655
Real Name: Mike
Re: New 2260/2560 on HPA
«
Reply #24 on:
May 13, 2012, 03:14:26 PM »
very nice work bob, that looks like one heck of a shooter
id deff buy a guns built by a few different folk here on the gta
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atx
.25 hatsan at44s-10 (down the road)
.22 disco, bnm breech & shroud, katana stock, 7" tube extension, leapers 3-12x40AO
.22 ccs 2400kt, extensively modified using the sikes touch.
www.airgunlab.com
www.discosrus.net
Cera Kote services: ddgrego---Designsbydink
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GTA
»
All Springer/NP/PCP Air Gun Discussion General
»
"Bob and Lloyds Workshop"
(Moderators:
Rocker1
,
ezman604
,
amb5500c
) »
New 2260/2560 on HPA