David E. Petzal's Gun Nut Quiz

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4/10 :eek:

I was pretty sure on the spring question but went with "no advantage" anyway. The rest I just sucked at. Go ahead, pity me, I can take it. I should get 1000 free once-fired 40cal brass to help jog my learning. :D
 
8/10, and I'm a newbie! I guessed on a few, the one with the fancy shotgun, and the one about .220 swift. I got the one about .22 rimfire accuracy wrong. I thought powder consistency played a bigger part. You need to make sure each bullet has the same velocity. I don't see how the primer has a big effect on accuracy.
 
If the primer mix and density is inconsistent, the effect is more fuse like than instant ignition, thereby causing a lot of deviation in velocity.

The primer effect on rimfire is from the outside in. Unlike centerfire where the blast force is fired right thru the center of the charge, disrupting and igniting it.
 
Correct! The answer is A, true.
Your final score is: 10 out of 10


Woo Hoo! One try and no googling.

Had to guess on the 220 Swift question and the Parker shotgun thing, though "no one knows for sure" was the intuitive answer.
 
8/10, but with two protests:

- How many Parker Invincibles are known to exist? Three, even if there might be rumours of a fourth three are known

-IMHO Petzal's answer to the spring question is wrong. Spring steel at ordinary loadings obeys Hooke's law, whether configured as a coil or a flat spring.

:p
 
8 of ten and I protest.

Flat springs do loose power. nothing in metallurgy can stay perfect up until the time it snaps, there is always some loss, it maybe be more durable, but Never is a mighty big word.



Three Invincible's are KNOWN to exist, as the question asks, There are rumors of at least one more, possibly as many as three more, but Three exist for sure.

I answered the questions as asked correctly, he failed to ask the correct question.
 
I always treat these surveys, the same way, I do the company proficiency ones, answer the question the way they want :evil:, not the way it should be.
 
Heck, I always thought the .220 Swift was based on......the .220 Swift
Is referring to Cartridges of the World considered cheating??

If you guys are gun nuts, you should get one of those books. It's really interesting to find out when stuff was developed and how. You'll find out that P.O. Ackley invented/developed most all the "new" rounds 60 years ago.
 
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