Free Floating barrel S200 Mk2.

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robertt
Posts: 111
Joined: Sun Feb 15, 2015 10:57 am

Free Floating barrel S200 Mk2.

Mon Aug 01, 2016 8:57 pm

I found although the S200 very accurate the POI could wander a bit.
So decided to free float the barrel.
Did a lot of filing on the barrel band and thought this would do the trick.
But I could not keep the barrel and air tube apart as the air tube was flexing.
I then found an article (Pdf) on fitting a homemade washer to the air cylinder the 'fixed' the flexing.
Anyway rather than a grinding down a washer I found a shim washer 28x20x0.5mm. ( £0.35p)
Made by ACCUGROUP which fits perfectly and indeed firms up the cylinder thus a free floating barrel.
Zeroed at 35y tonight and it shot a 5 shot clover leaf.
Hopefully problem solved and like me very simple.

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Raj
Posts: 2005
Joined: Sun Feb 15, 2015 9:36 pm
Location: Rugby

Re: Free Floating barrel S200 Mk2.

Tue Aug 02, 2016 5:58 am

Doing both ... the washer + the clearance on the band will give you a great result. You can improve things further by shimming the gap between the band and the air cylinder with film negative.

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“It's the Indian, not the arrow"

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robertt
Posts: 111
Joined: Sun Feb 15, 2015 10:57 am

Re: Free Floating barrel S200 Mk2.

Tue Aug 02, 2016 10:46 am

Thanks Raj.
Not sure as gap is so substantial I can't see forend / band playing any active part. But please explain. Rob.

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