David E. Petzal's Gun Nut Quiz
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Stickjockey
Member
7/10. Things learned:
.220 Swift was not based on the 7X57 Mauser case.
Flat springs don't lose their strength like coil springs.
The British made a large, clunky automatic revolver.
.220 Swift was not based on the 7X57 Mauser case.
Flat springs don't lose their strength like coil springs.
The British made a large, clunky automatic revolver.
MrDig
Member
Wow 8 out of 10, I must be chronic and incurable. I missed questions 9 and 10.
The eleventh question should have been..........
Do you pick up used brass in your caliber preference at the range?
A, All the time ammo isn't cheap.
B, Yes but I inspect it first.
C, No the gun I shoot has a custom chamber that requires me to fabricate the brass myself.
D, No I have too much money to worry about entertainment expenses.
This is in fact a trick question because three of the four answers would qualify a person as a Gun Nut
The eleventh question should have been..........
Do you pick up used brass in your caliber preference at the range?
A, All the time ammo isn't cheap.
B, Yes but I inspect it first.
C, No the gun I shoot has a custom chamber that requires me to fabricate the brass myself.
D, No I have too much money to worry about entertainment expenses.
This is in fact a trick question because three of the four answers would qualify a person as a Gun Nut
Deanimator
Member
7/10. The explanation of the "automatic revolver" is wrong, although the answer is right. The Mars pistol was a straight semi-auto, similar in concept to the original "Automag". The British "automatic revolver" was the Webley-Fosberry.
Contemporary Royal Navy reports of the Mars indicate that the action (and recoil) were so violent that they SCARED the testers...
Contemporary Royal Navy reports of the Mars indicate that the action (and recoil) were so violent that they SCARED the testers...
zookrider
Member
Explains ohh so much.:banghead:
Neo-Luddite
Member
Fun quiz--if it was for score I would request an alibi for the Parker question (it was poorly worded) and would like more specific info re: the spring question. My experience says that a bar spring will fatigue if left under tension (ie. cocked) over time. This is why so many old mc-1 aircrew knives wore out from s\torage and not use and why they went to coils in the newer ones. but, I digress...
Dave Markowitz
Member
8/10.
However, Petzal is confusing the Mars Automatic Pistol with the Webley-Fosbery Revolver. The Mars was not a wheelgun.
However, Petzal is confusing the Mars Automatic Pistol with the Webley-Fosbery Revolver. The Mars was not a wheelgun.
SniperStraz
Member
- Joined
- Nov 13, 2006
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- 871
7/10
Eleven Mike
Member
And why no mention of the Mateba?
Dr. Dickie
Member
I got 10 out of 10, but I guessed at about 3 and the only reason I got the last one right was I misread the question!
Sistema1927
Member
8/10 .220 Swift and flat springs.
Jeff Timm
Member
7 / 10 and I'm protesting the Parker question, I answered 3.
The springs I didn't know.
and I'm too tired to remember what the third miss was.
Geoff
Who needs a shower and a nice firm bed.
The springs I didn't know.
and I'm too tired to remember what the third miss was.
Geoff
Who needs a shower and a nice firm bed.
P5 Guy
Member
10 for 10
daniel (australia)
Member
- Joined
- Dec 25, 2002
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- 338
Oh come on! The answer to the spring question is nonsense!.:banghead:
Steel springs, whether coil or flat, don't get "tired". In either case, all else being equal and at normal operating temperatures, while ever any applied loads are within the steel's elastic limit the spring will continue to have the same rate or degree of "springiness" independently of the duration or number of loading cycles.
What often does for springs however is overloading, past the yield stress, which does cause permanent deformation. Stretching mag springs will do that, as will taking your car springs over big bumps at speed.
The other thing that can cause failure, perhaps more often in flat springs because of their geometry, is fatigue. This has nothing to do with tiredness, but is the name used for gradual progression of a crack across the material under cyclic loading stresses less than the ultimate (single loading) strength of the component. The crack will need to be initiated, perhaps in a grinding mark, microstructural defect, or even a sharp corner. It progresses until the remaining cross section cannot maintain the applied load upon which the crack propagates instantaneously to failure
Steel springs, whether coil or flat, don't get "tired". In either case, all else being equal and at normal operating temperatures, while ever any applied loads are within the steel's elastic limit the spring will continue to have the same rate or degree of "springiness" independently of the duration or number of loading cycles.
What often does for springs however is overloading, past the yield stress, which does cause permanent deformation. Stretching mag springs will do that, as will taking your car springs over big bumps at speed.
The other thing that can cause failure, perhaps more often in flat springs because of their geometry, is fatigue. This has nothing to do with tiredness, but is the name used for gradual progression of a crack across the material under cyclic loading stresses less than the ultimate (single loading) strength of the component. The crack will need to be initiated, perhaps in a grinding mark, microstructural defect, or even a sharp corner. It progresses until the remaining cross section cannot maintain the applied load upon which the crack propagates instantaneously to failure
Brian Williams
Moderator Emeritus
I got 10 out of 10 and almost flubbed the springs and knew that there are only 3 parkers known to exist, but intuition made me choose no one knows for sure.
The 220 Swift as a commercial cartridge came out based on the 6mm Lee Navy, but it was originally based on the 250-3000 with a blown out shoulder and shorter neck.
The Lee 6mm is a good round and would be great with todays powders and bullets.
The 220 Swift as a commercial cartridge came out based on the 6mm Lee Navy, but it was originally based on the 250-3000 with a blown out shoulder and shorter neck.
The Lee 6mm is a good round and would be great with todays powders and bullets.
David E. Petzal
Member
- Joined
- Jan 22, 2007
- Messages
- 2
To everyone who took the test
Your comments are very helpful. Doing these things is a different skill set altogether. I will try even harder in the next one to confuse, obfuscate, and weasel-word.
Your comments are very helpful. Doing these things is a different skill set altogether. I will try even harder in the next one to confuse, obfuscate, and weasel-word.
Eleven Mike
Member
Welcome to the forum. Who is this David E. Petzal?
joab
Member
I have to assume 10 of 10 because my comp wont let me take the test for some reason
spencerhut
Member
10/10 That was cake
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