Poll

Do you ever experience a ring of fouling (crud) at the point just below where you seat the projectile?

Total Members Voted: 16

Voting closed: February 15, 2005, 09:55:39 AM

Author Topic: Crud Ring Poll  (Read 788 times)

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Offline Longcruise

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Crud Ring Poll
« on: February 15, 2005, 09:55:39 AM »
Not very scientific but here goes! :grin:

Offline Ramrod

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« Reply #1 on: February 15, 2005, 12:53:22 PM »
The big flaw is not asking what powder was used. I think most of the complaints I have heard concerned 777.
"Jesus died for somebody's sins, but not mine." Patti Smith

Offline lostid

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« Reply #2 on: February 15, 2005, 02:01:57 PM »
I'm with ramrod.. The question is too generic to answer properly,,fact's could be squewed quite easily if yes/no/or don't know is answered.

My answer;; Depends, :D ,and I don't mean diaper.

No further comment.
i'm a realist. i've not seen it all, but man ,,I've Been Around the block once or twice

Offline Longcruise

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« Reply #3 on: February 15, 2005, 02:04:59 PM »
That was my first attempt at posting a poll and am not even sure how to rig it so the powder type could be included :?

Offline Dave K

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« Reply #4 on: February 15, 2005, 03:26:48 PM »
Actually my crud ring is always within 8" of the muzzle, never down near the breech.

Offline Longcruise

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« Reply #5 on: February 15, 2005, 05:48:12 PM »
Quote
Actually my crud ring is always within 8" of the muzzle, never down near the breech.


I've observed that too.  Not always but some days.  Here's my theory on that:

The projectile leaves the bore, the gasses and lots of ejecta leave the bore behind it, the barrel is warm and the inside of the barrel tube is hot but it cools immediately, as it cools quickly, it sucks air into the barrel and the portion of the barrel in front of the crud ring (the first 8' or so of barrel) sucks all the moisture out of the air and leaves the fouling in that section of the barrel softened but the part of the barrel below that gets hit with dry incoming air (cause the fouling in the first 8' took the moisture out of the air) and the dry air causes the fouling to harden for a stretch of the barrel.  At this point, the barrel has sucked in as much air as it's going to so the rest of the barrel doesn't get any effect at all.  'cept for the crud ring at the bottom that got made during the moment of inertial resistance of the projectile which caused a hot spot and also became a point of combustion for a major part of the powder charge.

whew... :)

Offline Longcruise

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« Reply #6 on: February 20, 2005, 06:38:05 AM »
Here is a link to some interesting research by the "mad monk".  It's longish but worth reading.  He gets into crud ring near the end of the article.

http://thunder-ridge-muzzleloading.com/Bill%20Knight.htm