I just got a St Croix 2C80MF backbouncing blank that was suppose to have a 1-4oz lure rating (online catalog) but the label on it says1-6oz now. Using the CCS formula of {.8 x cents-20 = grains / 1.5 x cents -20 = grains} really only gives a "range" of almost double ( .8 and 1.5). According to my math, 700 pennies would give a range of 1.23 - 2.35 ozs, 1500 pennies gives a range of 2.70 - 5.09ozs (and that's a lot of pennies).

How do I check this blank to see if it's in the 1 - 4 oz or the 1 - 6 oz range? I could use the median of 1.15 to calculate the center but I'm not sure what I would really have then? Any help would be appreciated. Thanks.

If you have the manufacturer's lure weight casting range, go with it. It should be a simple matter to hang some weight on the blank and see how things feel.

In the meantime, have you run the CCS ERN measurement? You might also try the formula given in the URRS.

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Whoa! The lure weight rating for some hot shot and back bouncing blanks is not what you can CAST, but what you can FISH! Be careful as trying to cast lures that weigh four or six ounces can easily pop a blank! Casting weight ranges are usually much more narrow, as the CCS indicates, but fishing lure weight ranges for back bouncing and hot shotting are very broad.

Good point, very true. Hot Shot lure ratings are almost always for the trolling weight, not casting weight. Back Bouncing to some extent the same, but they are much more powerful in the tip area than Hot Shot blanks are.

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I wasn't planning to cast 4 or 6 ozs but I know I'm going to have to use 1 1/2 - 2 ozs where I fish. This fall the water level was the highest I can remember and I was using 7/8 oz of lead just to drift and keep it ticking along at the bottom of the gravel runs and into the pools. I would think I'll need alot more weight than that to toss behind the boat and make it stay put. In another post Tom stated you can check the ERN on a piece of PVC tubing so tomorrow I'll find out what it takes to deflect this blank 1/3 but I don't know what that will tell me.

It will tell you what the relative power rating for that blank is.

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