crossman classic 177 air pistol

[buffermop]

My question is will it hurt the seals in the gun , if it was left pumped up for a while. Lets say 3 hours or better?

[Mxpe78a]

Nope, it is best to leave it stored with a couple of pumps in it.

[BGRooster1]

I have left mine with 10  pumps for days, but usually shoot it at the end of the day for practice. Then I put 2 pumps if the seals are newer and three if they are a little weak.

[His lordship.]

I am starting to wonder about pumping up these pneumatic s, like leaving one pump in them.  I had a Crossman 2200 pumper for 7 years, always put it away empty, the rest of the gun fell apart but the seals were still good.  Bought a Benjamin 392 last year, left one pump in it and the seals blew out after only 7 months.  I immediately made sure my Daisy 901 and my Benjamin pistol were kept empty, they still work great.


I also had a Crossman 1322 about 10 years ago, kept it empty too.  Traded it for a spotting scope and it was still going strong.


Crosman and Daisy say in the owner's manual to keep them empty, but I always figured it was lawyer's talk.  Looks like it is one of those opinion things, pumped up or empty? [size=78%]  [/size]