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All Springer/NP/PCP Air Gun Discussion General > American/U.S. Air Gun Gates

Springer only guy now has a Sheridan Blue Streak....

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Kragman1:
....and needs a primer.

My Aunt just gave me a working original C series in .20, Ser.# 3819XX which seems to put it at 1982 manufacture.  I'm looking forward to using it, but don't know much about them beyond odd bits I've bumped into online.

Is the max 8 pumps or 10 pumps?  (I've heard both)
I don't know how to maintain one. (and its been in storage for a long time)
What are the in's & out's of scoping one?
And anything else that you all know but I don't.

Thanks all!

Back_Roads:
 Every 100 shots or so a few drops of ND 30 wt motor oil, Pellgun oil, or secret sauce. 8 pumps max, you will know why at about 6 pumps :) Benjamin .20 pellets ok for plinking, JSB for accuracy.
 A Sheridan inter-mount or the like many prefer to do a scout scope style mount where they use a pistol long eye releif scope mid way up the barrel to make loading and pumping easier on you and the gun.

Kragman1:
Some chrony numbers -

13.58 H&N Baracuda:

6 pumps = 599.7 fps / 10.84 fpe
599.3
600.6
599.3

8 pumps = 664.4 fps / 13.308 fpe
665.0
663.7

9 pumps = 687.2 fps / 14.237 fpe
(my version of a proof load)

By comparison, I ran a few of the same tin through my early R9 and they averaged 695 fps / 14.58 fpe.
8 pumps is only 30 fps off that mark.


7 degrees and pretty windy outside - the infrared light kit pays off again....

ShawninIL:
Those are good numbers, looks like you got a good shooter. Congratulations.

Kragman1:
Thank you Shawn.

It turned up while we were going through some of my late Uncle's things.  And we think that it originally belonged to a different Uncle of mine, also passed.  Its a really nice thing to have turned up.  To me, it kinda falls in the same category as my grandfathers single shot .22.

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