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son is right handed but left eye dominant 
PostForum: Target Shooting: Casual, Fun and Competition   Posted: Tue Jan 08, 2013 8:04 pm   Subject: son is right handed but left eye dominant
gicos
 
Replies: 6
Views: 4856
Very true, Bob. There's probably also quite a bit of difference for someone who shoots a lot for many years, like military folk, versus occasional shooters. Completely retraining either the weak eye o ...
 
son is right handed but left eye dominant 
PostForum: Target Shooting: Casual, Fun and Competition   Posted: Mon Jan 07, 2013 9:03 pm   Subject: son is right handed but left eye dominant
gicos
 
Replies: 6
Views: 4856
My son is the same. I can say based upon 20 years of training marksmanship to Soldiers that most find it easier to retrain their weak eye than their weak arm. Both eyes are working during all waking h ...
 
New Old Project - .25 Disco Revisited 
PostForum: Rifles   Posted: Fri Dec 21, 2012 5:21 pm   Subject: New Old Project - .25 Disco Revisited
gicos
 
Replies: 26
Views: 15210
That rifle is a BEAST Bob! 104 FPE equals a .22 Long Rifle standard velocity. The coolest part isn't that it'll be shot at that power level all the time, but that it CAN go there. And probably higher! ...
 
Barrel Diameter, Bullets, and Balls 
PostForum: General Air Gun Questions and Topics   Posted: Fri Dec 21, 2012 1:17 am   Subject: Barrel Diameter, Bullets, and Balls
gicos
 
Replies: 8
Views: 4661
Looking forward to seeing how that works out, Bob. What's your take on how well a .220 buckshot would fare in a .224 barrel? Size F is used with decent results in .220 airgun barrels, as you know, but ...
 
Barrel Diameter, Bullets, and Balls 
PostForum: General Air Gun Questions and Topics   Posted: Thu Dec 20, 2012 10:51 pm   Subject: Barrel Diameter, Bullets, and Balls
gicos
 
Replies: 8
Views: 4661
What's everyone's experience with .22 caliber pellets/bullets/balls in different groove diameters? I expect .224 bullets in a .220 groove diameter barrel would be too much friction until swaged, but t ...
 
New Old Project - .25 Disco Revisited 
PostForum: Rifles   Posted: Thu Dec 20, 2012 6:49 pm   Subject: New Old Project - .25 Disco Revisited
gicos
 
Replies: 26
Views: 15210
You are a gun building beast and the Yoda of the airgun world, Bob. Beautiful work. YouAreAGod
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Thu Dec 20, 2012 1:57 am   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
OK, on to the gas port. I see two different approaches in the execution of this. In both approaches, the air is pulled off the barrel and directed behind the piston, forcing it closed. This is one of ...
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Thu Dec 20, 2012 1:49 am   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
This is just a session of thinking out loud here. I know a lot of folks enjoy discussing design on this forum, so here goes. If anyone sees any flaws in my logic, feel free to shoot holes in it. Bette ...
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Wed Dec 19, 2012 12:16 pm   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
Wow, that is some juicy stuff, Bob. Again, thank you sir. I'm going to have to chew on these equations for a while and improve my math skills.

The design I'm working with isn't a poppet valve. It' ...
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Wed Dec 19, 2012 10:17 am   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
I'm studying away and it is definitely a wealth of information you gave me there. I'm just trying to understand how the numbers work behind the graph. Like you, I have an insatiable appetite to know h ...
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Tue Dec 18, 2012 5:29 pm   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
Thanks for that, Bob.

Since I'm at a lull until after the holidays, I started studying the Second Law and trying to calculate the rate of acceleration of a projectile, and, in particular, the pres ...
 
New Project Rifle 
PostForum: General Air Gun Questions and Topics   Posted: Sun Dec 16, 2012 10:28 pm   Subject: New Project Rifle
gicos
 
Replies: 27
Views: 11499
Bob,

I'm a bit cornfused with the graph you did at 5,000 psi. I see one line starting at about 3,400 psi and the other starting at 4,000. All the other graphs I've seen you do start on the left wit ...
 
My Version of the Millenium Pumper 
PostForum: Rifles   Posted: Sun Dec 16, 2012 9:50 pm   Subject: My Version of the Millenium Pumper
gicos
 
Replies: 19
Views: 17636
ARRGGHH! Must not have had enough coffee yet when I did those. My apologies. The pressure would drop by half if the barrel volume ever hit 28.5cc, which it doesn't. So, the percentages listed are perc ...
 
My Version of the Millenium Pumper 
PostForum: Rifles   Posted: Sun Dec 16, 2012 11:56 am   Subject: My Version of the Millenium Pumper
gicos
 
Replies: 19
Views: 17636
You achieved what I'm after without even having to stand on the pump! Very encouraging. Besides being gorgeous, that's a .22 Short multi-shot pumper you've got there, Bob!

I ran the numbers to see ...
 
My Version of the Millenium Pumper 
PostForum: Rifles   Posted: Sat Dec 15, 2012 1:49 pm   Subject: My Version of the Millenium Pumper
gicos
 
Replies: 19
Views: 17636
There is only one word for it, Bob. Art. Truly above and beyond simply a tool. I do believe you have broken new ground in the field with this one and fully deserve the title of pioneer. That's no smal ...
 
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