Thread: Aa 400
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Old 22nd June 2010, 11:14 AM
Gilogrt Gilogrt is offline
Senior Member
Join Date: Mar 2010
Member of: Greyhound/Kibworth
Location: Warwick
Posts: 152

If it is anti tamper, I polished the hammer and rail and ends of the spring, polished trigger sears and replaced the rubber dignys that hold the sears with copper crinkle washers either side. Then with all the air out of the cylinder, took the pot out that holds the valve and spring in. Polished the valve rod, sides and ends of that spring and inside of the copper pot then set the pot at 57.5 mm.
Weighed out 25 jsb's and ran it over the crono at 165 bar fill which gives me 50 spot on shots and every single one did 777/778 pfs.
AAOC have guides on how to do it.
Hope this helps.
HW 97K
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