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Joined: May 2014
Posts: 1
New Member
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OP
New Member
Joined: May 2014
Posts: 1 |
I have a Benjamin model 397, purchased new in the early '90s; I like the gun. Many people have complained about the difficulty of pumping them up. My problem, however, is the extremely strong spring on the bolt. A few pellets loaded, and my fingers get very sore. Is there any way to reduce the strength of that spring. Why is it so strong? Does the firing pin impact have to propel the pellet past where the compressed air gets behind it? I have recently acquired a squirrel problem; they raid my bird feeder. I don't really want to kill them, just to give them a good hard sting. So I only give the Benjamin 3 pumps. If I wanted to kill them, I would use a Marlin .22, firing quiet CB caps. Thanks for any helpful suggestions.
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Joined: Sep 2008
Posts: 5,717
Campfire Tracker
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Campfire Tracker
Joined: Sep 2008
Posts: 5,717 |
Melvin, welcome to the 'fire!
I'm no expert and don't know the proper terms but I'll try. There is a pin on the bottom of the bolt that reaches inside the action. When you "cock" the rifle, the pin on the bottom of the bolt slides an internal cylinder to the rear so it can be held against spring pressure till you release it by trigger. Squeeze the trigger and that captured cylinder bumps forward hitting the valve and releasing the air pressure to the barrel/pellet. The spring pressure is not adjustable.
A piece of leather the size of a 50cent piece to put against the bolt for cocking may help.. Good luck!
"Camping places fix themselves in your mind as if you had spent long periods of your life in them. You will remember a curve of your wagon track in the grass of the plain like the features of a friend." Isak Dinesen
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Joined: Apr 2013
Posts: 4,939
Campfire Tracker
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Campfire Tracker
Joined: Apr 2013
Posts: 4,939 |
Ya ain't gonna train them. Feed 'em or kill 'em. If you want some entertainment, get a Twirl-a-Squirrel.
Charter Member Ancient order of the 1895 Winchester
"It's an insecure and petite man who demands all others like what he likes and dislike what he dislikes." szihn
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Joined: Aug 2012
Posts: 2,436
Campfire Regular
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Campfire Regular
Joined: Aug 2012
Posts: 2,436 |
It's the air valve that is struck to release the burst of air. And yes, that spring is quite stiff, as is the trigger. I have not found any tips for lightening the bolt pull. I just make sure to put a drop of oil on it once and a while and I put some moly paste on the trigger and sear. The gun shoots well in spite of the stiffness, it's my favorite for pellets.
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