Crosman Crosman 1322

[Rayan51]

Good evening! I have a question about the Crosman 13xx
I bought the valve and the flat top piston, and I'm not sure how many strokes it can handle, since the website doesn't specify. In this case, I bought it from Mellon Air, very good products, but how far can I go?

 

[Mike_Lenardon]

I have the same items in a 1377, casual shooting 7 or 8 pumps. Pesting 12 or 13 pumps.

 

[WobblyHand]

Be aware that continual "excess" pumping will tend to wear the pump arm. Typically, the pivot hole enlarges. But if it's only occasional visits to 14 it shouldn't wear excessively. 20 pumps is asking for trouble, especially if done a lot. I've flat topped both my 1322 and 1377. It's a good mod.

 

[c_m_shooter]

When I had a 1377 flat top and 15 inch barrel. 14 pumps was the max it would completely dump the air. Add a pump at a time. Shoot a pellet, then dry fire it to see if there is air leftover