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Author Topic: CO2 barrel length  (Read 1346 times)

Offline kiwi

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CO2 barrel length
« on: September 10, 2009, 08:23:16 PM »
Hi..What would be the best barrel length to
use with a boss valve ?..18" or 24"

Just ordered a 2240 / RJ long riser breech / B&A  boss valve
need to get the barrel under way..

So I'm hanging out for it all to arrive...

Pete
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Kiwi

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Offline SDale

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RE: CO2 barrel length
« Reply #1 on: September 11, 2009, 01:51:59 PM »
24 inches in .22 and a shimmed factory hammer spring would be the best way to go with the boss valve.

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Offline kiwi

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RE: CO2 barrel length
« Reply #2 on: September 11, 2009, 01:56:31 PM »
Thanks ....But when yer say shimmed ! ..
To incresse spring preload ?
& how thick should the shim be ?

Pete
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Kiwi

Spring guide sets...  http://www.trademe.co.nz/Members/Listings.aspx?
http://www.nzairgunners.com

If guns are outlawed ONLY outlaws will have guns

A tin of Gamo pellets is like a box of chocs U never know what yer going to get.....


Offline SDale

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RE: CO2 barrel length
« Reply #3 on: September 11, 2009, 01:59:07 PM »
Yup, increase preload just a bit.

I used 2 washers that fit inside the rear tube cap. I believe they were #10. Can't remember. But the total thickness was just a hair over 1/8". I know it doesn't sound like allot, but it made  a BIG difference!
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