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gicos · Replies: 6

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 ...

gicos · Replies: 6

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 ...

gicos · Replies: 26

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! ...

gicos · Replies: 8

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 ...

gicos · Replies: 8

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 ...

gicos · Replies: 26

You are a gun building beast and the Yoda of the airgun world, Bob. Beautiful work. YouAreAGod

gicos · Replies: 27

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 ...

gicos · Replies: 27

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 ...

gicos · Replies: 27

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' ...

gicos · Replies: 27

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 ...

gicos · Replies: 27

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 ...

gicos · Replies: 27

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 ...

gicos · Replies: 19

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 ...

gicos · Replies: 19

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 ...

gicos · Replies: 19

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 ...