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#7143674 - 02/07/12 04:38 PM
Formula for Estimating Weight
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Outdoorsman
Registered: 09/30/09
Posts: 100
Loc: Rowlett
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I fished Lavon today and caught a nice blue. I only have a 50# Berkly digital scale and was afraid I would ruin it. The cat was 45 3/4 inches long with a girth of 30.5 inches. Would someone please give me the formula for estimating the weight. 
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Ol Sarge
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#7143752 - 02/07/12 04:56 PM
Re: Formula for Estimating Weight
[Re: DAMFISHERMAN™]
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Pro Angler
Registered: 11/21/10
Posts: 513
Loc: Arlington, TX
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How close is this? I ask b/c my new PB at Hubbard this weekend was 17.5 on my crappy BPS scale, but it felt bigger. I measured it at 34"L with 20" girth, which by this formula says it's 22.67. I know it can't be exact, but could it be possible I broke into the 20's?
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A chump will find a problem with every opportunity. A champ will find an opportuntiy with every problem.
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#7143756 - 02/07/12 04:57 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Guru
Registered: 05/06/10
Posts: 12995
Loc: Arlington, TX
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58lbs is my guess.
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i like to go to party city and stay lit for 2 nights.
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#7144096 - 02/07/12 06:21 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Celebrity
Registered: 04/18/10
Posts: 6850
Loc: Burleson, Tx.
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L x's G (sq)/ 800
so 45.75 x's (30.5 x 30.5)/800
45.75 x's 930.25/800
42558.94/800
= 53.2 lbs.......
Capt. Larry and a cpl others swear by this +/- 4%
I've tested formula ob several weighed fish and it was always real close.....
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#7144103 - 02/07/12 06:22 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Celebrity
Registered: 04/18/10
Posts: 6850
Loc: Burleson, Tx.
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Nice Fish !!!!......Where at on Lavon?
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#7144181 - 02/07/12 06:39 PM
Re: Formula for Estimating Weight
[Re: *Mr. Fabulous*]
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Outdoorsman
Registered: 09/30/09
Posts: 100
Loc: Rowlett
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[quote=*D.C.M.*]Nice Fish !!!!......Where at on Lavon?
That was the formula I had in mind. Just couldn't remember it.
About 300 yards or so due north of the flood gates.
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Ol Sarge
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#7144193 - 02/07/12 06:43 PM
Re: Formula for Estimating Weight
[Re: Gixxer1k]
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Outdoorsman
Registered: 09/30/09
Posts: 100
Loc: Rowlett
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How close is this? I ask b/c my new PB at Hubbard this weekend was 17.5 on my crappy BPS scale, but it felt bigger. I measured it at 34"L with 20" girth, which by this formula says it's 22.67. I know it can't be exact, but could it be possible I broke into the 20's? Gixxer1k try the formula D.C.M. posted. I think it is more accurate. The other one uses the same formula for bass and catfish. That just doesn't sound right.
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Ol Sarge
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#7144392 - 02/07/12 07:31 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Team Angler
Registered: 04/03/09
Posts: 3064
Loc: Arkansas River (Oklahoma)
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on the bank??
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#7145021 - 02/07/12 09:32 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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Pro Angler
Registered: 11/21/10
Posts: 513
Loc: Arlington, TX
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How close is this? I ask b/c my new PB at Hubbard this weekend was 17.5 on my crappy BPS scale, but it felt bigger. I measured it at 34"L with 20" girth, which by this formula says it's 22.67. I know it can't be exact, but could it be possible I broke into the 20's? Gixxer1k try the formula D.C.M. posted. I think it is more accurate. The other one uses the same formula for bass and catfish. That just doesn't sound right. 17 it is then!
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A chump will find a problem with every opportunity. A champ will find an opportuntiy with every problem.
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#7145091 - 02/07/12 09:49 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Celebrity
Registered: 04/18/10
Posts: 6850
Loc: Burleson, Tx.
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Gixxer1K.....17 lbs is a Nice Fish .....my first sig pic is 17 lb'r out of Benbrook in JMoungers boat......anything over 10 lbs is fun!
Edited by *D.C.M.* (02/07/12 09:50 PM)
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#7145104 - 02/07/12 09:54 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Celebrity
Registered: 03/21/10
Posts: 5404
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Congratulations to the both of you on the 50+ and the 17.
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#7145115 - 02/07/12 09:57 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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Pro Angler
Registered: 11/21/10
Posts: 513
Loc: Arlington, TX
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Sorry Danny, I did not mean to hijack your thread! Great fish and thanks for the kind words and the formula fellas!
_________________________
A chump will find a problem with every opportunity. A champ will find an opportuntiy with every problem.
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#7145201 - 02/07/12 10:21 PM
Re: Formula for Estimating Weight
[Re: Denny Hix]
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TFF Celebrity
Registered: 04/18/10
Posts: 6850
Loc: Burleson, Tx.
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I heard this formula works on FAT girls too but I've never tried it...... 
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#7146450 - 02/08/12 09:45 AM
Re: Formula for Estimating Weight
[Re: Gixxer1k]
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Outdoorsman
Registered: 09/30/09
Posts: 100
Loc: Rowlett
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Sorry Danny, I did not mean to hijack your thread! Great fish and thanks for the kind words and the formula fellas! No apologies needed. Glad to help out!
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Ol Sarge
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