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Old 3rd October 2014, 10:03 AM
Adz Adz is offline
Banned from Sales
Join Date: May 2011
Location: Herts
Posts: 31

barrel is too thin on s400 to free float and it will probably resonate being so thin. they do benifit however from having a cut down o-ring or a thinner one in the barell band so the barell is not clamped but "dammed" in place. good thing with the barell band on s400 is it is not clamped around the air cylinder so doesnt cause zero shift. stocks need inletting though as when the allen bolt holding the action is tightened pressure is put on the front off the action causing shift
when sorted these little old s400 are capable of 15mm groups at 55yrd
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