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 Post subject: crosman 1377
PostPosted: Thu Oct 07, 2021 11:32 pm 
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Joined: Fri Aug 27, 2021 11:40 pm
Posts: 85
I am sure you all know crosman 1377. But is it OK to dry-shoot it?


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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 9:47 am 
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Joined: Mon Feb 11, 2013 12:46 am
Posts: 5054
yes your fine to dry fire pumpers, but like any pneumatic or C02 airgun you will
be putting unwanted stress on the valve stem

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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 12:13 pm 
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Joined: Fri Aug 27, 2021 11:40 pm
Posts: 85
Ace wrote:
yes your fine to dry fire pumpers, but like any pneumatic or C02 airgun you will
be putting unwanted stress on the valve stem

Thanks a lot for the reply. Just wonder why real shooting puts less stress on the valve stem compared to dry shooting?


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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 3:51 pm 
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Joined: Wed Feb 07, 2018 8:10 pm
Posts: 1345
Location: Winnipeg MB
The simple answers is that it uses the energy to propel the pellet out of the chamber/barrel. If no pellet, more of the energy/force is directed to the valve stem.

Similar result can be found when using very light pellets in very high powered pellet rifles.

Others can explain the science behind this.


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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 8:03 pm 
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Joined: Mon Aug 08, 2016 7:23 am
Posts: 4259
Location: Somewheres near the Atlantic
I say yes, and parts for it are dirt cheap ( 16$ for a whole new complete valve assembly ) that I wouldn't worry about it.

BB1Shooter wrote:

Similar result can be found when using very light pellets in very high powered pellet rifles.

Others can explain the science behind this.


That only applies to piston driven ( Gas or Spring )

As light weight pellets in any other action. The valve pressure does not really change.


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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 8:58 pm 
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Joined: Fri Aug 27, 2021 11:40 pm
Posts: 85
BB1Shooter wrote:
The simple answers is that it uses the energy to propel the pellet out of the chamber/barrel. If no pellet, more of the energy/force is directed to the valve stem.

Similar result can be found when using very light pellets in very high powered pellet rifles.

Others can explain the science behind this.

THanks for your explanations. Probably it is not very dangerous as I made only one pump when dry-shoot )) As far as I know is also OK to dry-shoot IZH46


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 Post subject: Re: crosman 1377
PostPosted: Fri Oct 08, 2021 9:00 pm 
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Joined: Fri Aug 27, 2021 11:40 pm
Posts: 85
leadslinger wrote:
I say yes, and parts for it are dirt cheap ( 16$ for a whole new complete valve assembly ) that I wouldn't worry about it.

BB1Shooter wrote:

Similar result can be found when using very light pellets in very high powered pellet rifles.

Others can explain the science behind this.


That only applies to piston driven ( Gas or Spring )

As light weight pellets in any other action. The valve pressure does not really change.

I am very pleased with your answer. Of course, I was aware about spring-guns


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