It sounds like the base band (if tapered) or all the bands if cylindrical is to small. You won't be able to "bump" it up with smokeless, it will just get worse.

I don't know what Gray 24 is but, get some Javilina Schuetzen, some of SchuetzenDaves Canadian lube, NRA 50/50 or make some Emerett lube, that may also help the leading.

If it's BSed to far in, it can also gas cut and lead.

Frank

I should have mentioned the bullet is the hoch 322-200

If the bullet is big enough to fit the groove dia, it might be carbon from the burning powder, it looks just like a string of lead until you use your thumb nail and it cuts easily in half and will break apart.
Never hurts to make sure before changing to much.

Been there done that.

Argie1891

First off I’m going to make some assumptions. I am assuming that you are breech seating using the plugged case Paul provides. Take one of your bullets and breech seat it. Now hold the barrel up to a strong light and look at the chamber if you see any light the bullet is too small. Now tap out the bullet and look at it you should see all the lands and where they stop, you should also be able to see a faint ring where the bullet is sealing the chamber near the base. If you don’t have both your base band is too small. Get a bullet with a .323” base band.
  The second thing I noticed is that you are only using the bottom two lube grooves. Use them all that’s what they are there for. At some point you’ll get froggy and make your own lube but for right now get your self either some Javalina Schutezenlube of some SPG they are both good reliable lubes. 
  Your load is a little light your groups should tighten up somewhere between 14.3 grains and 14.6 grains. Do Not put jacketed bullets down your bore. There is a strong probability that you will do more harm than good.  Before you do anything to the barrel talk to Paul or Gail they may have suggestions. As a last resort fire lapping with 400 to 600 grit lapping compound can be done. 10 t0 twelve bullets should do it and clean in between each shot. 

40 Rod

Be sure, as KAF says, that it's really lead and not carbon.  Ledball

Have you looked at this web site? Almost everything you need to know.  WELL ALOT OF GOOD INFO.
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A. J. Palik

argie1891,

    A few mionths ago I had a new barrel made for my Stevens 44 1/2 by CPA. It's chambered in 32-40 and I bought a HOCH bullet mold as well. Have had no leading problems at all. Even when I was shooting some bullets cast of scrapalloy to rough in the 16X Unertl scope. I lube with JSL and have shot 13.5 to 14.5 grains of IMR4227. The barrel that Paul and Gail made for me was crafted from a Douglas XX with in .318 x 1turn in 15" twist. My HOCH bullets drop out of the mold at 322. and again there is no problem. Have had 5 shot gropus at 100 yards run as small as .549" and 10 shot groups at 200 yards under 2". One 200 yard group of 5 shots measure .632". This was all with less that 100 shots through the barrel.   
 
Sounds to me like you should slug your bore and go from there. Have you asked Paul or Gail for assistance? They are very nice people and I'm sure they will assist you.

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