I wonder if pressure or climate coditions enter into it? I did the ones with short pcs of rifle barrel by welding them on to a plate and puting 1 inch of powder with a ball on top set it off with fuse through a small hole showed rust in 4 days. Lee

Yes. Maybe they need to make ML barrels out of that kind of steel!

I checked the blade today and it really has not gotten worse for the most part. I think I know how to speed the process up, but the question would be how fair is that. I would put it in the garage. While still dry, it gets much more humid in there and I think that would set this stuff working faster.

I had a rifle in the workshop over night and took it out this morning and shot it. There was a finger cot over the end of the barrel I forgot to remove last night. You could not believe the rusting that took place under that finger cot. Needless to say I wiped it all off right away, but this blade sat out there for over a week with little or no change and that barrel changed over night.

Perhaps I need to get an old barrel and repeat all this experiment again. For my own knowledge.

Cayugad,

Could there be any issues with the rusting mainly occuring in between the grooves in the barrel and since you testing on a flat surface it may not stick on enough sides to cause rapid rusting?

Could you run a saw blade over your areas to create grooves for the powder to catch?

Also maybe fire some more powder over each of the surfaces to see if maybe there needs to be more trials?

Just a thought?

Tom

December 6th, I checked the blade. I think the movement to the other building really started something. Pyrodex is rusting and pitting as is Goex 2,3& 4f. A surprise is the Black Mag 3 is showing pitting is appears.

The surprise is the Swiss and KIK powder are not rusting as bad as the Goex. Must have something to do with how they make the powder.

What about the Control? How do you like the KIK in your rifles?

The control area is fine. As for KIK it does seem to shoot very clean and with good power. I only bought a pound of it. I wish I had bought more as this stuff is indicating to be a good powder.

This summer or spring I am going to order some powder. If I go through Grafs I will get some Goex and Graf powder. If I go through Powder inc I will try Goex and KIK.

I think most of the type blades you are using are made from steel with a high boron content and heat treated.
While there are a number of different steels being used for different gun barrels Idon't thinkany are heat treated
as this would cause problems with straitness. I am suprised at the different results but after stoping and thinking about itbecause of the way they are used it makes sense the as exposed to moisture as mower blades are they would be alloyed to resist rust, Lee

that's exactly what I was thinking the other night.. the steel has to be different or every time you mowed wet grass the thing should in all respects start to rust off the mower...