Varmint Control

Jun 26, 2009 213 Replies

TheGlimmerMan wrote in news: snipped-for-privacy@4ax.com:

KE=MxVsq.

So what? I wasn't talking about smaller caliber rifles. They would have muzzle energies MUCH lower than the 9mm air rifle.

KE=WxVsq/450400 W= weight in grains V= velocity in FPS (Vsq = velocity squared) KE in ft-lbs.

.380cal 90gr at 900 FPS= 161 ft/lbs

9mm 77gr at 900 FPS= 138 ft/lbs.

IMO,that IS "almost as powerful"; a .22 cal air rifle 20gr at 650 FPS = 18.8 ft/lbs. = not even close.

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Jim Yanik jyanik at kua.net

Modern air rifles fire lead projectiles at 1000 fps, and fire alloy projectiles at 1200fps.

Ice is nice.

Nick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061

AlwaysWrong is, surprise, wrong again. His neuron must really be lonely tonight.

"Jim Thompson" wrote in message news: snipped-for-privacy@4ax.com...

Potato cannon anyone?

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High power Nitrogen Laser. Plans in Scientific America 25 to 30 years ago.

Nick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061

Its at Hospice.

You can\'t have a sense of humor, if you have no sense!

Oooohh, you're going to bwind the widdle vermin.

High power - for about 5 nanoseconds. Inherently low duty cycle pulsed due to the physics of the lasing energy levels. Blows holes in - nothing. Makes most paper glow blue, due to "brighteners" (florescent molecules) in most paper to make it whiter. Never so much as a scorch mark on the paper. Pumps dye lasers if you'd like a visible beam. The beam is not particularly well organized, as lasers go. Other than potentially putting your eye out if you don't wear goggles or electrocuting you if you are stupid with it, pretty much non-hazardous.

I've built these about 84 times with (mostly) freshmen college students (if I recall the SA design correctly, ours was somewhat more effective, as we used a nice, and rather spendy, thyratron).

If you want to cook things with a laser you can't see, use a CO2 laser, just like the folks that heat-treat steel.

Cats, coffee, chocolate...vices to live by

Bullshit, Scientific American NEVER published "plans" for anything.

Found some videos

Camera using night vision for shooting rats

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Here's a video with a camera mounted on a 4X4 R/C monster truck

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And a radio control tank that shoots airsoft pellets

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Need a bigger tank?

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Combine R/C model tank, working gun (air pistol?), wireless camera, and an IR laser pointer to make fun and effective varmint control. :-)

Or for lower cost, I've gotten good results with at wireless camera and a rifle. Usually gently opening the door and sticking the gun out doesn't scare off the varmints.

RogerN

krw wrote in news: snipped-for-privacy@4ax.com:

ya think it might CRACK the window? or shatter it?

No matter what round you're shooting,you MUST always be aware of where your misses might go.

Jim Yanik jyanik at kua.net

TheGlimmerMan wrote in news: snipped-for-privacy@4ax.com:

doing the math,even jumping to those velocities still doesn't put the .22s anywhere near the 9mm at 900 FPS.

Actually,from Googling(research!),I've found that air gun shooters prefer to keep velocities around 900 FPS,as the higher speeds make much more drag,and less accuracy.

Jim Yanik jyanik at kua.net

"RogerN" wrote in news:s5CdnZA8uZ0YGNrXnZ2dnUVZ snipped-for-privacy@earthlink.com:

well,DUH;don't leave food out for the animals.Feed your pets indoors.

don't blame the skunk,it's YOUR fault. you're lucky you haven't attracted any bears.

you'd think the RC vehicle alone would scare off the critters. but,no,you GOTTA shoot them....even though it's YOUR fault they're coming around.

Jim Yanik jyanik at kua.net

Only Americans know this. Arabs (you know who I mean) (just one example) seem to think firing guns in chaotic directions with only a slight aiming obligation is the way things are done.

Humans are idiots. We should succinctly kill all backward minded idiots that think it is OK to go round killing folks for no reason.

That is a large pool of people and somehow it even infiltrated the US in the form of retarded gangs.

We should impose the death penalty on gang members. We should not have to have a current crime that we caught them at. They had to "blood in" to be a gang member. That alone is enough for me to impose the death sentence on them.

Sent too soon, found some even more interesting.

R/C machine gun for those stubborn varmints

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USB Missle launcher with webcam, doesn't appear effective but the idea is similar.

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USB gun turret with R/C servos

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Cat hunting with R/C tank with camera

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Tank with camera firing at targets.

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RogerN

You are weak. It's certainly not going to kill someone after.

Are you really related to DimBulb?

krw wrote in news: snipped-for-privacy@4ax.com:

Ah,the sure sign of a losing argument.

Jim Yanik jyanik at kua.net

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