[Sterling Archer]

I have an SLG '09 and the other day at the field I was chronoing it. It was all over the place. It ranged from 230-280 on 5-6 shots. I have changed all the major o-rings and the bumper and have lubed the o-rings. Regardless, the problem has persisted.

There are no after market parts in the gun and I use the stock barrel. I was shooting new Draxis paint and using a steely tank. I have an Halo feeder, but I do not think that really matters.

Can anyone help me?

[gndmepyon]

Paint to bore match can cause that. Also making sure the Reg is properly lubed.

[neo2000x]

A 50fps variance is a lot, even with a bad paint to bore match. Like the previous post said, clean and lube the reg. Also try a new battery.

[Big Daddy4891]

Its most likely the reg, mine did the same thing. I got a new reg and it was all good.