S200 Mk2 Charging

Re: S200 Mk2 Charging

Postby eboswan » Sun Dec 24, 2017 5:55 pm

Was the rifle brand new
If so how many shots have you fired through it.
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Re: S200 Mk2 Charging

Postby Russell1956 » Sun Dec 24, 2017 6:13 pm

No, it was used.

I've probably fired about 50/60 - I haven't had it long.

As I said, I got a chrony after getting the gun, at which point it was running 10.4, which seems to be the normal power output.
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Re: S200 Mk2 Charging

Postby eboswan » Sun Dec 24, 2017 8:49 pm

It would probably benefit from a strip down and a good clean and change seals while your at it.
Then you can set it up too suit yourself.
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Re: S200 Mk2 Charging

Postby wastrel » Mon Dec 25, 2017 10:09 pm

Hang on, there should be no `in line pressure`! the air in the line should pass to the cylinder, 190bar (or whatever) in the line of a hand pump would destroy it-pronto!
if the pump/line aint passing the air into the cylinder then either there`s a leak in the chain `tween pump and cylinder or the cylinder itself, if your reading whatever `Bar` it should be in the cylinder cos no way the `line` is taking/holding it!
folks on these forums can waffle on all they like about using your body not your arms with a stirup pump but I know, it`s a complete ball ache, but not impossible, 8ftbs after a fill tells me -
summit`s not right here!
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Re: S200 Mk2 Charging

Postby Blackbaronfish » Tue Dec 26, 2017 9:45 am

He needs to see if he has overfilled before doing anything. Dry fire enough to see if the power over the chrono go up.
You would have the results after 20 shots.
Now if the results are still low try pumping again. You will start pumping up pressure in the line until it matches what’s in the rifles cylinder.

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Re: S200 Mk2 Charging

Postby Russell1956 » Tue Dec 26, 2017 7:30 pm

Hi Guys - hope you all had a great Christmas.

Thanks for all the input.

After dry firing the power went up to 10 ft/lbs +. So I gave the adjuster screw on the right hand side of the breech a little tweak and it's now shooting at 11.1 ft/lbs over the chrony, and that's good enough for me.. Maybe it had been tuned down a bit. Seems OK now.

Next step will be to run a good series of shots over the chrony to see what sort of consistency I get at that power. Then I just need to master the art of recharging the gun.

Once again, thanks for the suggestions.

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Re: S200 Mk2 Charging

Postby eboswan » Tue Dec 26, 2017 7:50 pm

Just one thing you might not know if you leave the pressure drop too around 50 bar mark you may find that the rifle will dump all the remaining air.
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