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1895ss Super Member
Joined: Jul 21, 2005 Posts: 2612 Location: Not Here...!!
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Bushmaster Super Member
Joined: Jun 12, 2005 Posts: 11390 Location: Ava, Missouri
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Posted: Mon Aug 13, 2007 7:28 am Post subject: Re: Gun Nut's Quiz |
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And I missed one because I can't spell...
_________________ I have one nerve left and yer standin' on it...
DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote... |
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tracker Super Member
Joined: Nov 08, 2006 Posts: 1175 Location: Manitoba, Canada
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Posted: Mon Aug 13, 2007 1:19 pm Post subject: Re: Gun Nut's Quiz |
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Well, I have to thank you gentlemen for the education I've received here. I got 11 out of 15 right on that quiz, and seeing as how I've never loaded a cartridge in all my born days, I'd say that's not too bad. Not as good as my two main teachers here, but not bad. I'd have to put down my success to what I've learned just reading you fellas posts.
_________________ "If God hadn't meant for man to eat animals, he wouldn't have made them out of meat!" |
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Dimitri Super Member
Joined: Nov 25, 2005 Posts: 5944
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Posted: Mon Aug 13, 2007 2:28 pm Post subject: Re: Gun Nut's Quiz |
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I got 10 out of 15.
Dimitri
_________________ A thousand hills, but no birds in flight, ten thousand paths, with no people's tracks. A lonely boat, a straw-hatted old man, fishing alone in the cold river snow. |
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Vince Site Admin
Joined: May 25, 2005 Posts: 15704 Location: Brisbane AUSTRALIA
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Posted: Mon Aug 13, 2007 11:46 pm Post subject: Re: Gun Nut's Quiz |
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11 out of 15.
Not good.
Cheers, Vince
_________________ Cheers, Vince
Illegitimi non carborundum
(Never let the bastards grind you down)
Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God.
"Nulla Si Fa Senza Volonta."
(Without Commitment, Nothing Gets Done) |
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Hauken Member
Joined: May 21, 2007 Posts: 31
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6396 Location: Sydney Australia
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Posted: Tue Aug 14, 2007 1:43 am Post subject: Re: Gun Nut's Quiz |
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10 out of 15 ..
Then again, I am a rookie ...
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
gelandangan.weebly.com/ |
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Bushmaster Super Member
Joined: Jun 12, 2005 Posts: 11390 Location: Ava, Missouri
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Posted: Tue Aug 14, 2007 6:01 am Post subject: Re: Gun Nut's Quiz |
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"Rookie"?? I wonder....
_________________ I have one nerve left and yer standin' on it...
DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote... |
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Arron Super Member
Joined: Nov 20, 2006 Posts: 352 Location: Cen.Iowa, by way of SWIowa
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Posted: Wed Aug 15, 2007 9:47 pm Post subject: Re: Gun Nut's Quiz |
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I got three wrong. The one about overbore(I think most people get confused on that) And the "full Patch" I was thinking Fully Jacketed, and the .35 Whelen.
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Handloader Super Member
Joined: Aug 22, 2005 Posts: 1032 Location: Phoenix, Arizona
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Posted: Thu Aug 16, 2007 8:45 am Post subject: Re: Gun Nut's Quiz |
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I missed one, the question about reduced charges of slow burning powder causing pressure spikes. This is a theory that has never been duplicated in lab testing and was prominently taught in the 60s and 70s. Secondary pressure excursions, from my reading and personal experimentation, have never caused explosive results. From what I have determined, reduced charges of H4831 can cause inconsistent pressures and, therefore, velocities. Using piezo strain gauge on a 300 Win Mag (my pre64) and testing over 100 reduced charges produced only one load that exceeded 45,000 psi. On my 270 (also a pre64), no reduced loads exceeded 42,350 psi.
Does anyone have a personal example where this has caused pressures to spike to the point of brass failure? I appreciate any cited personal examples, the load data used and the results.
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GroovyJack Member
Joined: May 21, 2005 Posts: 621 Location: Bama
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Posted: Thu Aug 16, 2007 4:56 pm Post subject: Re: Gun Nut's Quiz |
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Missed one and knew it when I did it ..
_________________ My Goal In Life Is To Be As Good Of A Person As My Dog Already Thinks I Am |
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Bushmaster Super Member
Joined: Jun 12, 2005 Posts: 11390 Location: Ava, Missouri
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Posted: Fri Aug 17, 2007 6:08 am Post subject: Re: Gun Nut's Quiz |
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I agree with you Handloader. I got it right because I knew the popular thinking on that subject (as I muttered to myself). I have a feeling that we could argue about detenation until the cows came home and we still wouldn't have them convinced. About the only place that I have seen a lot of detenation and secondary pressure excursions is in internal combustion recipricating engines. But that's a fuel vapor and air thing. I'm sure there more examples of this, but as a mechanic all my of life this is the only place I have seen this problem on a continuous basis.
_________________ I have one nerve left and yer standin' on it...
DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote... |
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tracker Super Member
Joined: Nov 08, 2006 Posts: 1175 Location: Manitoba, Canada
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Dimitri Super Member
Joined: Nov 25, 2005 Posts: 5944
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Posted: Fri Aug 17, 2007 2:43 pm Post subject: Re: Gun Nut's Quiz |
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That one about reduced charges was one I got "right".
Dimitri
_________________ A thousand hills, but no birds in flight, ten thousand paths, with no people's tracks. A lonely boat, a straw-hatted old man, fishing alone in the cold river snow. |
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GroovyJack Member
Joined: May 21, 2005 Posts: 621 Location: Bama
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Posted: Fri Aug 17, 2007 3:22 pm Post subject: Re: Gun Nut's Quiz |
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I can follow the thinkin' on this , and very well recall it was part of what I was taught as well ..
If it makes any sense ( no comments from pnut gallery ) , I can understand the concept very easily , but have never actually "seen" any actual proof ..
Similar to the concept , and this one can be shown with a strain gauge , of a pressure pulse at the muzzle .. I forget the whole idea , all my Handloader rags went up in the fire , but Barsness wrote about it a couple years ago .. Doesnt happen all the time , seems until you find the sweet spot , it happens and once you have the supposedly perfect powder/bullet match , it goes away ..
HL , you remember this one ??
_________________ My Goal In Life Is To Be As Good Of A Person As My Dog Already Thinks I Am |
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