A little fun with a few of the ladies today. 10-20mph tail wind pushed them around a little bit but overall happy with the results. The FWB Sport pushing FX 8.4’s to 870fps was more affected than the larger calibers. 5 shot groups at 30 yards 
A few groups
- Thread starter seangabrell
- Start date
She’s at about 14.2fpe. Played around with the insides a bit. Put an HW80 vac seal on the piston, took a coil and redressed the end, and made a sleeve for the rear spring guide to take up some of the slop in the shot cycle. Cocks and shoots really smooth right now.
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Is the VAC seal one of the old Vortec parachute seals that gave been discontinued? I am refering to the one that had the little pin to keep it from turning on the piston.
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Just wondered, they made a seal many years back that had an air channel molded into the seal face and then a big parachute around the perimeter. The seal needed to be held in a certain position to increase the air flow out the port. There was a small pin that had to fit into a shallow hole to keep the seal from rotating that needed to be drilled into the piston. Often the pin broke off and the power dropped when the seal rotated. Needless to say they were a bust, but they did work very well if the seal could stay in position. I found a fix but was to late, they had been discontinued. They still show up on ocassion, and if you found one, I was going to explain the fix.
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Thanks for the detailed info. Did you have one on an 80? If so, what was the benefit? Or loss I guess you would say when they fell out of position?
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Very nice shooting and a nice arsenal as well. I love my 98 but your barrel is to die for. Wish we could get them here. Crow
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Are the barrels coming screw cut with the weight or the full length with sleeve? Sucks about the moderator regs up north
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Has just a straight barrel, approx. 4 inches screws off. I was happy till I saw what I was missing. I really like the look with the moderator on it.
Crow
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