Just starting to explore casting my own boolits and this strikes me as a good way to see if I made the finished boolit correctly or not. Any recommendations or thoughts about Lee's hardness test kit?
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Just starting to explore casting my own boolits and this strikes me as a good way to see if I made the finished boolit correctly or not. Any recommendations or thoughts about Lee's hardness test kit?
I use it and recommend it.
Use full for finnaly BHN if you have target goal. I use it more for mixing alloys. Inuse a lot of scrounged mistery metals. Good way to mix and match to get a desired BHN.
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I have one. It is decidedly better than nothing. Still involves a bit of guesswork.
I like the art pencils test, a little harder on testing boolits tho, but fine on ingots.
I use the Lee kit and like it.
Before I bought the Lee kit, I did some research reading comparing it to other methods...tests concluded it is just as accurate as any of the others. Using the microscope, holding it steady, having enough light, is really the only downside. There have been several solutions to this, from using a pop bottle top...to modifying a child's toy plastic microscope
They work, the price is good and there are mods for holding the magnifier.
I use one & it works for me adequately.
Only difference is that I have not used the microscope do-hickey for some time.
Instead I take a red sharpie pen & color the divot, then use my calipers to measure the divot. ( I have used a magnifying glass to look to place the calipers on the edges of the divot, but after I got a better light for the bench I no longer need to do that.)
Then compare the number from the caliper to the scale provided with the kit & go from there.
I don't "have" to color the divot, but it makes it just a bit more highlighted to see sometimes. Also good if you decide to repeat the test for some reason on the same lead, it can reference which divot is the oldest as compared to the newest one.
Unless ya want to spend more $$, it should work fine for most folks, IMO.
Some like old pickup trucks & some like new fast cars to get somewhere, its one of those YMMV things.
The Lee tester still does the job, it just does not measure & tell you what the result is immediately. You have to do the extra steps to find the BHN yourself. So, to me, it is like the old pickup truck that gets ya there, it does the job.
G'Luck! whatever ya decide to get!
:)
The most complained about part of the Lee kit is the microscope. But there are many ways to get around that, and Mal Paso's method works quite well. Personally I tried a few, but wound up using my magnifying visor and dial calipers. I just "bracket" the dimple with my calipers and use the Lee chart...
It is as good as your ability to measure consistently, and it does a good job at allowing you to be consistent in a fairly standard way.
With pencils you can learn to be consistent inasmuch as "Is this harder or softer than this othe sample?". The problem is that two people can have different techniques leading to each having their own scale. They both get meaningful information but what one extrapolate to bhn 10 the other may consider bhn 12. Either have no problem blending and measuring the alloy hardness they may aim for. With the Lee tester if you get good at it (sample prep, application of force, time, measuring of dimple) we both should get pretty darn close to the same value.
I love mine. I use a table top hobby vise from Harbor Freight to hold the microscope and a flashlight on the desk. works like a champ.
Tony
Get a Lead Bullet Technology tester and move on. No guessing with it.
Mal Paso has the answer!
Use mine all the time.
I have one, it is usable, inexpensive and repeatable. I have fabricated the pop bottle holder as well. I'm not sure if it is directly comparable to actual BHN numbers but I get repeatable accuracy that I can use to compare my alloys.
As a novice in casting it now gives me a second data point other than the grey stuff melted in the pot.
If anything it’s a good place to start as been said by those more experienced than me.
I have one and have not used it since I bought my CabineTree-style tester several years ago. The CT tester is VERY accurate, easy to use, works on any shape of sample, is totally portable (take to junk yard!), very fast, and not hard on my eyes like that silly little microscope thingy.
Buy what you can afford, but spend more than you feel you should, as you will have it for a long time!!!!!
Good luck!
bangerjim
I use the Lee BHN Tester all the time and find it easy and simple to use. I did mount the scope in a "toy" microscope which makes for quick and accurate measurements.
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See http://castboolits.gunloads.com/show...=1#post1894714
T`ain't rocket science.
:bigsmyl2:
I like mine. The only criticism is the magnifying tube. Ya have to stabilize it as others have suggested. Or do like I do and use a jewelry loop and your calibers. I find it pretty spot on.
I bought one and use it with the magnifying tube then back up my reading with a caliper. I find it works well but for now I'm just getting into casting boolits and I need a lot of other toys before I can realize my dream of casting and rolling my own.