Sheridan Let’s see those Pumpers!

.20calguy

Hmmm....my security program won't allow access to that site. Bummer I know.
I guess I'll need to find another way to get there?
Thanks for the try!

Mike
Here are the newer than 1961 model features in photos.
Screenshot_20240321_073324_DuckDuckGo.jpg


Screenshot_20240321_073338_DuckDuckGo.jpg


Screenshot_20240321_073353_DuckDuckGo.jpg
 
Thank you everyone for your comments and pictures of some awesome pumpers!
I think this 1866 Barra should not be overlooked. Cheap plastic rifle but fun to shoot especially with my grandson. Good power and quite accurate. It is a great design and would be the sweetest MPP ever made if a company made a serious high quality version of it.
FC43F6CD-B073-454C-B808-FFC80B871C68.jpeg
 
Thank you everyone for your comments and pictures of some awesome pumpers!
I think this 1866 Barra should not be overlooked. Cheap plastic rifle but fun to shoot especially with my grandson. Good power and quite accurate. It is a great design and would be the sweetest MPP ever made if a company made a serious high quality version of it. View attachment 447458
Not what I need but when I saw this post I went out and bought one. I agree, this is a decent quality pumper that is very easy to pump, nice looking, decent accuracy and high on the fun side to shoot. Just very different to shoot than my other pumpers.
 
I managed to get a pair of these on eBay. This one is really nice, but the other was just a bunch of parts in poor condition held together with zip ties. Neither one worked, but I did an alcohol flush on this one and after a few hours it started holding air.

I haven’t had enough time to really wring it out yet, but I was getting velocities of around 630 fps with 18.1 JSB’s. After about 12 pumps it stops dumping all its air, but I think that will improve with use.

IMG_3415.jpeg
 
I managed to get a pair of these on eBay. This one is really nice, but the other was just a bunch of parts in poor condition held together with zip ties. Neither one worked, but I did an alcohol flush on this one and after a few hours it started holding air.

I haven’t had enough time to really wring it out yet, but I was getting velocities of around 630 fps with 18.1 JSB’s. After about 12 pumps it stops dumping all its air, but I think that will improve with use.

View attachment 453092
I guess that would mean you’ve reached the guns max pressure, or the hammer spring is weak.
 
I guess that would mean you’ve reached the guns max pressure, or the hammer spring is weak.
I suspect it’s the hammer spring. I was hoping it would resolve itself as the lubricant penetrated and parts got used to moving again, but it only got worse with use. It won’t dump more than 2 or 3 pumps now.

I’m a bit reluctant to crack it open as it’s one of those clamshell designs with a bunch of pins and parts sandwiched in between the halves, but that looks like what I’m going to have to do.