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.356 Bulldog power valve

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Travis of jeffersonstateairrifles has had my Bulldog for about the last 9 months working on a improved air valve and boy did he succeed. I'll get right to it. These speeds are with the spring loose in the housing. Also, the spring is half strenth of a stock spring, very easy to cock. 126gr .356 BBT did 895 at 2500psi, 915 at 2700psi, 928 at 2900psi, 943 at 3000psi, 961 at 3225psi, 973 at 3400psi, 989 at 3500psi, 999 at 3800psi, 1012 at 4000psi. I don't recommend the higher pressures to anybody, use them at your own risk. I was searching for valve lock and didn't find any. Using a 180gr spitzer it did 814fps -265fpe at 3000psi and 875fps-306fpe at 4000psi, that was yesterday.
Today I turned the hammer spring all the way up. A 165gr did 879fps-283fpe at 3000psi, 948fps-329fpe at 4000psi. A 173gr swaged did 811fps-253fpe at 3000psi, 901fps-312fpe at 4000psi. And the 180gr from above did 908fps-330fpe at 4000psi. Travis says that the power can be raised even more with a stronger spring. I had already ported my gun before Travis got it and it was shooting 241fpe max. All that is in a thread "working on the bulldog" in this gate.
Been working on the Bulldog - Airguns & Guns Forum
Regards, Tom
 
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I'm new to the form, so I just read this posting for the first time today. Those are some pretty impressive numbers you're getting. I see this is an old thread from last year, are you still shooting the gun?
 
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Wow, sounds like he already had it dialed in.
I see that you're in Jefferson. I am over by the Ankeny Wildlife Refuge. If you ever want to come over I am out in the shop most days banging on metal. Not with an airgun, with a hammer...
 
OP
T
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Hey, who doesn't like knives. Here's my number, I'm retired so I'm around most of the time. five4oneninesevennine1seven1seven.
Regards, Tom
 
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Yeah I like knives too and they can be fun to make and I do a lot of them. but most of the stuff I end up selling is Blacksmith type forged items. I am simi retired, if there is such a thing. But I decide need to spend a little more time this year goofing around and shoot the airguns more. I just hope the airgun neglect hasn't hurt them from sitting.
Frank
 

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