What is the record for largest rattlesnake?

It is said that the largest rattlesnake on the planet is the Eastern diamondback. The record length for this venomous snake is 96 inches.

Tim Manning, Herp.

If you "google" "Texas" you will see a man with a 9 ft 1 inch 90 lb rattler.it was at Tow, Texas off hwy 281. Northern tip of Lake Buchanan 2007

The supposed 15 foot Eastern Diamondback rattlesnake was not 15 feet long. It was 7 foot and 3 inches and was found in Sept 2009. The largest Eastern Diamondback rattlesnake on record in 8 feet long. None have been found longer. Skins can be deceptive as they can be longer when shed from the snake.

See the related link for a picture of a 14' Western Diamondback rattler taken in Happy Camp, CA., on the weekend of 9/11/10 by a' good friend of mine.

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In Mid July, 2010, a rattlesnake was found near Whitwell, TN that measured:

14ft 9in, 24 rattles, 2 buttons, and 100lbs.

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There has never been a rattlesnake over eight feet long anywhere. But, there are many hoaxes. The eight footer was killed in Carteret County, North Carolina, in 1959.