29 minutes ago, CrankFate said:

If the reel is rated for 150 yards of line that is .10 mm, if you use line that is .050 mm on it it will hold 300 yards of line. This is how I do my math with line capacity. But this only matters on an extremely limited shallow spool or if you are fishing something big that runs far an takes hundreds of feet of line. Otherwise you almost always have way more line than you will ever need. But you still need it because an underfilled reel will not cast as good and will (often) have inconsistent drag tension.

.10 mm = .004, .050 mm = .002, your math is correct, may not be appropriate.  The op was questioning 10 lb test mono that measure .014D or .35 mm. Using unkonwn or not disclosed diameter braid, how many feet of backing of 10 lb mono should be used?

You can't answer that question without knowing the braid diameter!

Just for debate the reel spools are not linear from arbor to rim regarding line capacity. As the spool fills, the circumference increases requiring more line per spool turn as it fills. If you fill the spool 1/2 full with backing, how many feet of .014 D line is required if the spool holds 145 yards? How many feet? Will the reel now hold 60 yards of braid?

The op choose to fill the spool with 60 yards of braid, then add enough mono to fill the spool. The line is now on backwards, so the op reeled the line off of the spooled reel onto to a empty reel spool. Don't know if the op measured the mono after the first reel or repeated the process? This solved the op's problem. 

100 or 75 yards would have been a better choice IMO, who cares! Definately a winter thread discussion.

Tom

 

18 minutes ago, WRB said:

.10 mm = .004, .050 mm = .002, your math is correct, may not be appropriate.  The op was questioning 10 lb test mono that measure .014D or .35 mm. Using unkonwn or not disclosed diameter braid, how many feet of backing of 10 lb mono should be used?

You can't answer that question without knowing the braid diameter!

Just for debate the reel spools are not linear from arbor to rim regarding line capacity. As the spool fills, the circumference increases requiring more line per spool turn as it fills. If you fill the spool 1/2 full with backing, how many feet of .014 D line is required if the spool holds 145 yards? How many feet? Will the reel now hold 60 yards of braid?

The op choose to fill the spool with 60 yards of braid, then add enough mono to fill the spool. The line is now on backwards, so the op reeled the line off of the spooled reel onto to a empty reel spool. Don't know if the op measured the mono after the first reel or repeated the process? This solved the op's problem. 

100 or 75 yards would have been a better choice IMO, who cares! Definately a winter thread discussion.

Tom

 

To clarify the line used was 30 lb suffix 832 for 2 reels and 30 lb suffix performance braid for the 3rd. 

 

For me 60 yards is more than any of my other baitcasters and I have never had a reel get to the backing. When I flip the braid on my other reels I might post the numbers of what is actually left on there. My Lews crush had 50 yards of 50 lb power pro on it. 

 

Definetly a winter topic, that I never expected such a debate on. @Delaware Valley Tackle Definitely made me feel better about my line length choice. 

 

Tom I would hazard a guess that you do a lot of deep water fishing? I rarely target bass deeper than 13 to 20 feet depending on the weed edge.  Walleye trolling is where I put out the most line. 

Just trying to help, 30 lb Suffix braid is .011 Dia, small dia braid equal to average 8 lb mono. You have 600 yards of braid line, 2 spools 300 yds each. 

Braid is much lighter line then mono, so more braid will reduce spool weight and cast better. You want the joining knot from the backing to the braid deep enough into the spool so it doesn't bother your casting. Depth of water has little to do with casting distances.

Good luck with your set up.

Tom

5 hours ago, cgolf said:

To clarify the line used was 30 lb suffix 832 for 2 reels and 30 lb suffix performance braid for the 3rd. 

 

For me 60 yards is more than any of my other baitcasters and I have never had a reel get to the backing. When I flip the braid on my other reels I might post the numbers of what is actually left on there. My Lews crush had 50 yards of 50 lb power pro on it. 

 

Definetly a winter topic, that I never expected such a debate on. @Delaware Valley Tackle Definitely made me feel better about my line length choice. 

 

Tom I would hazard a guess that you do a lot of deep water fishing? I rarely target bass deeper than 13 to 20 feet depending on the weed edge.  Walleye trolling is where I put out the most line. 

What line did you use for backing, or if known what is its dia.   I will show you the easy math with an explanation if you can share this.  Just to end what should have been very simple.

 

17 hours ago, Heartland said:

What line did you use for backing, or if known what is its dia.   I will show you the easy math with an explanation if you can share this.  Just to end what should have been very simple.

 

I could have done the math but would have needed to use the line counter wth the big game, but this method was easy enough and honestly being the off season here gives me something to do and still think about being on the water next year. 

cool

 

It was interesting while unspooling my 2 accurists. One with 50 lb power pro only had 35 yards on it, it now has 60 of 30 lb 832. 

 

The second had 65 yds of 30 lb 832 which I ended up flipping since it had a fair bit of use. 

 

Still have one other reel to check out. If it has at least 50 yards of 30 lb 832 on it I will flip it and call it good or it gets new line and backing. 

On 12/28/2018 at 1:12 PM, WRB said:

.10 mm = .004, .050 mm = .002, your math is correct, may not be appropriate.  The op was questioning 10 lb test mono that measure .014D or .35 mm. Using unkonwn or not disclosed diameter braid, how many feet of backing of 10 lb mono should be used?

You can't answer that question without knowing the braid diameter!

Just for debate the reel spools are not linear from arbor to rim regarding line capacity. As the spool fills, the circumference increases requiring more line per spool turn as it fills. If you fill the spool 1/2 full with backing, how many feet of .014 D line is required if the spool holds 145 yards? How many feet? Will the reel now hold 60 yards of braid?

The op choose to fill the spool with 60 yards of braid, then add enough mono to fill the spool. The line is now on backwards, so the op reeled the line off of the spooled reel onto to a empty reel spool. Don't know if the op measured the mono after the first reel or repeated the process? This solved the op's problem. 

100 or 75 yards would have been a better choice IMO, who cares! Definately a winter thread discussion.

Tom

 

Whoa, complicated. You’re right, but for my reels almost every spool has more line than I need. When capacity is an issue on small reels, why not just ditch the backer, tie directly to the spool and then use only line with a public line diameter available? My kids use Spirex RD 100’s so I put the thinnest line I could find in rainbow color (they requested rainbow) and it gives about double the 95 yards of 10lb power pro the reels supposedly hold.

Here is how I figure out how much mono backing to use for a predetermined amount of main line.

 

Spool Capacity = 145 yards of 10lb mono @ .014     145 X .014 = 2.03

Main Line = 75 yards of braid @ .011 dia                    75 X .011 =  .825

                                                                             -----------------------               

Subtract                                                                                  = 1.205

 

Divide result  by dia. of mono backing                                    1.205 / .012 = 100.41

 

Backing Line  = 8lb mono @ .012 dia 

 

Using this example you would use 100.41 yards of the 8lb mono and then 75 yards of braid to fill the spool  (aprox.)

 

 

I have done it this way for years and it will get you very close, but you still need a line counter.