Detuning a B-19 ?

[cobalt327]

Posted elsewhere.

[19Sheridan57]

Have a crosman G1 extreme I got from flea market for $15...shooting around mid 7's and when i decided to replace the spring it was like 1 3/8" shorter than the new oem spring. Got the seal replaced and got it to low 9's....I got power but not shooting as smooth as before and it doesn't like CPL 7.9. I put back the old spring and all's well until 4 or 5 tins later I got 2 springs in front of the spring guide.

  I have a G1 Extreme as well, that I bought used. I was surprised that it was easy & accurate for me to shoot , since I am not a Twanger guy. I tested it & it is shooting a little over 700, but pretty smooth. I found a Crosman Vantage , like new, & it shoots 900 fps. It really is a TWANGER  & is hard to shoot. I had rather have the G1 any day ! I wonder if they have the same spring & the G1 is just weak.

[bantam5s]

David,

Just curious how quiet the report is on the de-tuned B-19. Is it any quieter than the 880 ? I was kicking around getting a lower powered springer for an ultra friendly backyard gun and I,m thinking a de-tuned Optimus might do the trick.

From what I can hear my 880 on 3-4 pumps is still a good bit quieter than the B19, granted it's not exactly fully tuned and there are things that could reduce the noise.

[lillysdad621]

it is very quiet. the fact that it is undersprung and that it has so much more mass than a little rifle... they are quiet...

[Privateer]

David,
 A pumper will always be quitter then a Springer. Just as a PCP will be. You don't have the long spring rattling around!
The suggestion to remove the rear spring guide is fine to reduce preload but I'd suggest a custom guide in delrin.
What that does is reduce that twangy sound in springers and you don't need tars!

[Mr. Panther]

    Yeah Dave, there are things you can do to it, with out spending any money to quiet it down. I sleeved the piston on mine with an old pop bottle plastic sheet, and polished the spring ends, and made a plastic bushing out of a pop bottle for the bottom of the spring, and used a tungstun disulfide lube..... Made a big difference with out having to pump money into a AG you just want to shoot occasionally.
    You could have cut a spring or bought a new spring and cut it or bought a custom set up for it, or just removed the rear spring guide which really doesn't so anything other than provide pre load on that platform. From what I gather though it is doing what you wanted for about a few minutes work and zero cash. Enjoy bro, . 

[bantam5s]

    Yeah Dave, there are things you can do to it, with out spending any money to quiet it down. I sleeved the piston on mine with an old pop bottle plastic sheet, and polished the spring ends, and made a plastic bushing out of a pop bottle for the bottom of the spring, and used a tungstun disulfide lube..... Made a big difference with out having to pump money into a AG you just want to shoot occasionally.
    You could have cut a spring or bought a new spring and cut it or bought a custom set up for it, or just removed the rear spring guide which really doesn't so anything other than provide pre load on that platform. From what I gather though it is doing what you wanted for about a few minutes work and zero cash. Enjoy bro, .

I may try some of these things in the future.
A project is a project, so anything free I can do I'll probably do at some point just for something to do.